Here’s what consumers have asked with answers from Brevo (formerly SendinBlue) staff and previous consumers.
They don't respond at all, you keep contacting them, and they would keep ignoring, because they are thieves!
It was just random and my biggest mistake was to believe in the fake reviews that they themselves posted online to gain customers and later rip them off.
No they are totally thieves. Don't ever use their services you would lose all your money and contacts