ZOHO SUPPORT, WHY WON'T YOU ANSWER?

ZOHO SUPPORT, WHY WON'T YOU ANSWER?

Six emails to Zoho and not one single response?

I cannot send or receive emails. This has been occurring since October 23. Emails will send but shortly after I get a notification email 'THIS IS A WARNING MESSAGE ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE.'
I have sent several help emails to zoho and had no response. This is a business email; if it will not work, we will move to another provider.This needs to be fixed NOW .