What to Do About a Chargeback
The money is taken back first and the argument happens afterwards. That reversal of order is what makes chargebacks feel so unfair, and it is also what tells you how to prepare.
When a Client Says the Work Wasn't Good Enough
Most complaints about quality are not about quality. They are about a difference between what you thought was included and what they thought was included, and that difference was created before you started.