Lost access to my WhatsApp account (Hacked)

Hi everyone, My WhatsApp account got hacked this morning, and the guy who took it turned it into a WhatsApp business account. I've tried everything but I can't get it back, contacted WhatsApp on Facebook and via email but still no answer.

When I try to log in my account, I can't receive any new code (message/phone call), and even if I wait some time before asking for a new code, it just tells me I logged in recently and that I need to wait more time.

Please help.