This is basically a whole section in the grifters guide to business. Placing small hurdles to refunds via things like asking for one / filling out a form / cash

This is basically a whole section in the grifters guide to business. Placing small hurdles to refunds via things like asking for one / filling out a form / cashing physical cheques etc will result in not having to give back 100% of the money that you have taken from people. https://en.wikipedia.org/wiki/Embarrassing_cheque https://en.wikipedia.org/wiki/Embarrassing_cheque