The suspension was for "suspicious billing activity", tried appealing twice with the correct billing address, and was told the suspension is final (some automated email) both times.
They won't take my calls because the account is suspended, which leaves me not being able to advertise on the #1 service to do so.
It's completely unacceptable, especially for a business in their position. One tiny mistake leads you to a lifetime of suspension to a service vital to almost any business.