Each chargeback on a transaction costs Facebook about $20 even if the credit card dispute does not end up being resolved in your favor. I recommend doing this (in addition to getting legal advice or taking legal action) if you want to penalize Facebook as much as possible for the inconvenience they caused you.
It'll penalize OP way, way, way more and cause them way more inconvenience. Cost of getting a lawyer, ending up on potentially shared blacklists for chargebacks, wasted time, etc.
I feel for the OP, but this won't stick to the man. It'll stick to the op.
I think the fear of a "chargeback blacklist" is overstated here. Anyone can easily apply for another credit card, add an authorized user to their existing card, or use any card masking service to change their payment information. Chargebacks exist exactly for situations like this. I've never had issues with any shared blacklist after filing chargebacks against shoddy businesses. You must be ready to cut off contact with the business you are filing against, in case they refuse to do business with you in the future, but that's not a problem here because it looks like Facebook has already cut the OP off.
You don't need a lawyer to go to small claims court. OP can get free legal advice through a local self-help program or an inexpensive legal consultation through a local bar association program if they want to, but paying for legal assistance is certainly not mandatory.
