Why is my zoho mail blocked

Why is my zoho mail blocked

Hi, 
My zoho account is blocked sales@alhasanat.ae can you please let me know how to unblock it 

Before this a mail came to verify spf records i verified it 
then it came mail box is full i deleted all the emails

Now I cannot unblock the account 

Its very frustrating , i cant send a mail to zoho mail and there is no call center number

when i click unblock me it comes error please contact zoho mail