My account was flagged

My account was flagged

Hi seocheckout, i don't know why you flagged my account saying this:

This message was detected as spam. You could be using a URL or a Word which has been flagged as spam previously. If you were recently sending mass messages, your account may have been restricted.

i haven't been sending mass messages, you should help me check what's going on please, i can't respond to my client and there's no other ways i can reach them.. this is urgent