TERRIBLE SERIVCE

I am really frustrated. I have a wifi account with MTN and debit order should have went through on Saturday 4th May. The debit order didn't go through because of insufficient funds, I have been calling from Monday morning all day and week for the debit order to go through my account. My services have been interuppted I can't work and I have the fund in my account to be debited. Yesterday I was told it would be debited yesterday and account will be reactivated. I am still waiting. why can this not be solved!

I have many references because I made so many calls: ***, ***, ***

Can this be resolved ASAP!