I just want to make a payment!!!

I've tried Twitter, I tried emailing you guys, I tried calling, not a single person has responded to my query. Not even one!!! My internet services have been suspended because payment won't go through from my Capitec account. Now not only is the payment pending, I've got penalty fees too because payments keep bouncing. I've got enough money in the account, I'm 1000% sure I've got the correct banking details as I've used them to make payment to the same internet service provider before. The reason payment not going through is "Do not honour". I don't even know what that means. I'm starting to get extremely frustrated... This is a huge inconvenience, Capitec is my only bank. I need to make this payment but you guys won't let me. And don't even care to help me. What the heck guys???????!!!!!!!!!