Same my experience!
Unfortunately I cannot recommend this service either.
I bought an account with BM verified a few months ago. Facebook revoked the BM verification in less than two weeks, I believe if I had realized this earlier, they could have offered a replacement, however, they are probably temporarily verified accounts, you can't work long term, it's a really temporary solution.
Also, you pay over $300 for an FB account that will not be yours. There are other people with access, they are probably hacked accounts, the owners of the account keep using the account, you don't have access to a password and it is a risky business model.
Support only points out that they have sold ''thousands'' of FB accounts, have great reputation and approval, but do not answer the questions directly, just reaffirm their supposedly high reliability and reputation.
Paying over $300, I was hoping to have an FB account with BM verified long term and with exclusive access. However, the FB account has shared access and the BM verification is really weak.