Stripe account suffered a card test

My Stripe account suffered a card test, Stripe asked me to provide KYB materials including inventory documents and company documents, shipping information, but the account was still closed and Stripe is about to make a mandatory refund of all funds in the account (including the actual purchase price of the product). I am seeking help, but Stripe support just tells me it is not working. This could be a vulnerability of Stripe, if your competitor uses Stripe and you want to destroy the competitor's payment system, just test the stolen credit card like crazy and obviously your competitor's Stripe account will be closed.