Building Loans inbox full from 10am

I have a building loan with FNB. Since this morning I have been trying to send an email requesting a progress payment to the designated email: [Email Removed] However the email always returns undelivered as the designated inbox is full. At 15h00 an FNB consultant indicated that there is no alternative email address that i can use however she assured me that they are aware of the problem and IT is working on it and I should try again in about 30 minutes. I have been trying ever since till about 21h30 and the inbox is still full. How can FNB building loans be that pathetic to not immediately rectify the problem as it is the only email address available to customers. I have just wasted a day and needless to say very frustrated.