You can file a complaint here https://oag.ca.gov/ this is not like filling a lawsuit but often gets good results. The AG is like the lawyer for the state. Considering baremetrics is based in san francisco, you might get some interest.

Likewise you could file a complaint with Stripe.

What we have here is inexperienced people in a startup acting stupid, but a little suggestion from the attorney generals office or their payment processor usually gets some really good attention.