Cannot login in to a panel

Hello,
I can't log in to my account via the panel. Email and password are 100% correct, as I use a password manager (it worked a few months ago). I've tried the option "Forgotten your username or password", but it doesn't send me an email (it says it does). I have also tried to reach out support, but it requires to login - my emails to customer-service@ovh.com are rejected, as I get a response:

> If you require assistance from our support teams, please connect to your account via the OVHcloud Control Panel. This will help to ensure your request is treated as quickly as possible.

Could somebody provide a contact way of reaching out to anybody from OVH support? I am paying for services, which I can't access now.