Accounts Team on Holiday

I have a contract with MTN, smooth sailing first few months until these last three months where they have been insisting that I have an outstanding payment on my account. I’ve dealt with at least 4 different consultants, all giving me the run around. I eventually sent through my statements and payment notifications - I was told twice that I used the wrong reference but they will allocate payment to my account. It’s two days later, I’m still unable to call or text as I’m suspended and no one has been in touch to 1). APOLOGISE for being negligent and telling me over and over I’m wrong and 2). UNBLOCK my account.

I’m so disappointed by this lazy lazy and poor service.