The answer to your question is really simple.
If there is no provision in the franchise agreement which entitles the franchisor to charge you a R50k fee, then they can't. Also, if they never facilitated the sale, then what is the charge for?
Does your purchaser have to sign a new franchise agreement with the franchisor if he wants to continue operating?
The CPA does not say anything about this, and it shouldn't either. This is not the sale of goods or services. In fact, your allegation is that the franchisor never even provided a service ...
You need to stick to your guns and say No. They can't force you to pay the R50k "fee".
If there is something more specific that you need clarity on, please continue in this same thread. Let me know if you need more advice!
I hope you found my answer helpful. If you did, PLEASE rate my answer & please leave me positive feedback!
Good luck and best regards,
Please note: This answer does not create an attorney-client relationship. Please consult a local attorney in person for legal advice. This information is being provided so you can better discuss legal matters with your attorney.