Last updated: 13 July 2026, Version 2
This is the agreement between you ("the Client") and Nikodem Kosowski ("Nikodem", "the Mentor") covering the health and performance mentorship service delivered through nkmentor.com and the client portal. You accept this agreement electronically in the portal before your first payment is due, and your acceptance (with the date, time, and IP address it was given) is recorded and treated the same as a signature. If you have not accepted it in the portal, contact Nikodem before making any payment.
This is mentorship, not a generic health program. Nikodem works across whatever is actually holding you back, which may include your gut, hormones, nervous system, training, and nutrition, and just as often your mindset, relationships, or financial decisions where those are part of the real picture. The service includes an intake assessment, a written protocol built from your answers, a daily tracker, direct messaging support, and access to book calls, for the term and at the fee agreed between you at signup.
The specific fee, payment schedule, and term length are whatever was agreed directly with Nikodem and reflected in the invoice(s) issued to you, not fixed amounts in this document.
Nikodem is a health and performance mentor. He is not a doctor, dietitian, psychologist, or other licensed medical professional, and nothing provided through this service is a medical diagnosis, treatment, or a substitute for professional medical care. Recommendations are based on the information you provide and are not a guarantee of any particular health outcome.
You confirm that you are physically and mentally able to participate in the mentorship program, that you have disclosed any medical conditions, medications, injuries, pregnancy, or other relevant health information accurately and completely, and that you will consult a qualified doctor before making any change that could affect a diagnosed condition, medication, or pregnancy.
You voluntarily assume all risk of injury, illness, or other adverse outcome that may result from following the protocol or any guidance given, and you release Nikodem from liability for such outcomes to the fullest extent permitted by law, except where caused by his gross negligence or wilful misconduct.
Fees, currency, and the payment schedule (one-off, deposit plus instalments, or recurring) are whatever was specifically agreed with Nikodem at signup and set out on the invoice(s) sent to you. Payments are processed by Stripe. By providing payment details or paying an invoice, you authorise Nikodem to charge the agreed amount on the agreed schedule.
All fees are non-refundable once mentorship has begun (that is, once your protocol has been delivered or your first call has taken place, whichever is first), regardless of whether you continue to engage with the service, follow the protocol, or complete the program. This reflects that Nikodem's time, review, and protocol-building work is delivered upfront.
No guarantee of any specific result, outcome, or transformation is made or implied. Mentorship depends substantially on your own honesty, consistency, and follow-through, which are outside Nikodem's control.
If a payment is not received by its due date, you will be notified and given 5 business days to make payment before any late fee applies.
If payment remains outstanding after that grace period, a late fee of the greater of £15 or 1.5% of the overdue amount may be applied per missed payment, reflecting the reasonable administrative cost of managing late payment. This fee will not exceed what is recognised as a fair estimate of that cost under the law that applies to you.
If your payment schedule is recurring, your mentorship continues, and payments continue to be due on the agreed schedule, until you tell Nikodem you want to cancel. Not responding to messages, not logging in, or not following your protocol does not cancel your agreement or pause your payment obligation, only messaging Nikodem directly to cancel does.
To cancel, message Nikodem directly through the portal or WhatsApp. Cancellation takes effect from the date you notify him, stops future charges, and does not refund amounts already paid or due up to that date.
If a scheduled payment fails and Nikodem is unable to reach you for 60 days despite reasonable attempts to contact you, he may pause further billing attempts and refer the outstanding balance for collection. Pausing billing in this way does not waive or reduce the amount you owe.
If you are a consumer, you may have a legal right to cancel this agreement within 14 days of accepting it without giving a reason. If you ask Nikodem to begin delivering your protocol or mentorship within that 14 day period, you acknowledge that you have expressly requested this, and that once your protocol has been delivered in full, you lose this cancellation right and will owe the full fee for services already provided.
If you believe a charge was made in error, or you have any concern about a payment, you agree to contact Nikodem directly through the portal or WhatsApp first, and to give him a reasonable opportunity to review and resolve the issue, before contacting your bank, card issuer, or Stripe to dispute or reverse the charge.
Filing a chargeback or payment dispute without first raising the issue with Nikodem is a breach of this agreement. In that case, Nikodem may provide your bank, card issuer, or Stripe with this agreement, your acceptance record, invoices, and relevant communications as evidence that the charge was authorised and the service was delivered, and may pursue recovery of any amount successfully charged back, plus any dispute fees incurred, as a debt owed by you.
Your protocol, tracker questions, and any materials provided to you are for your personal use only. You agree not to resell, publish, or redistribute them to third parties without Nikodem's consent.
Nikodem may suspend or end mentorship for non-payment, abusive behaviour, providing false or materially incomplete health information, or misuse of the platform. Ending mentorship for these reasons does not entitle you to a refund of fees already paid.
To the fullest extent permitted by law, Nikodem's total liability to you arising out of or related to the mentorship service is limited to the total fees you paid in the three months before the event giving rise to the claim. Nikodem is not liable for indirect, incidental, or consequential loss. Nothing in this agreement limits liability that cannot legally be limited, including for death or personal injury caused by negligence, or fraud.
This agreement, together with the Terms of Service and Privacy Policy, is the entire agreement between you and Nikodem regarding mentorship services, and supersedes any prior discussion on these points. It is governed by the laws of England and Wales, and the courts of England and Wales have exclusive jurisdiction over any dispute arising from it, except that if you are a consumer in another country, mandatory consumer protection law of the country where you live may still apply and take priority over this section.
If any part of this agreement is found unenforceable under the law of the place where you live, that part will be limited to whatever is enforceable there, and the rest of this agreement remains in full effect.
Nikodem may update this agreement from time to time; if a change meaningfully affects you, you will be notified in the portal. Continued use of the service after that point means you accept the update, but any change will not apply to a payment dispute or cancellation request already in progress under the version of this agreement you originally accepted.
This document is a plain-language agreement between you and Nikodem and is not a substitute for independent legal advice if you want it reviewed before accepting.
Questions about this agreement can go to Nikodem directly through the portal messaging feature or WhatsApp.