Again account suspended after I have paid

This is about the 7th time now, I pay my account on the 20th / 21st of every month, the bank sends its payment confirmation to the email address provided by OpenWeb but come the 1st, the account is suspended. I have now sent them the payment confirmation directly from the bank on the 1st, I have sent it to them from my work email account too. No response. I phone, no answer on the phone. I leave a message for them to phone me, nothing. Day 2, go through all of that again, same result, nothing. Day 3, same result, nothing. I am so sick and tired of this absolutely pathetic, useless service. I will admit the product is fairly good, but the service is amazingly bad.