"No Mailbox Currently, there is no mail box available for your account"

"No Mailbox Currently, there is no mail box available for your account"

Hi,

I have a Zoho account which has been working fine until this morning, when I couldn 't log into my account. I just keep getting a message telling me that there is no mail account. 

"No Mailbox

Currently, there is no mail box available for your account. Click the button below to send a request to your administrator "    I have done this, but it still tells me there is no mailbox.

As this is a business account I need to get it sorted asap.    Help please