No communication with vuma Tel

I'm so annoyed with this Fibre. November I asked can the change my debit date they gave me the run around. December I ask since u refuse to change my debit date please give me my voucher number so I can pay at wollies that was not done they disconnected my Fibre I had to go lend money to pay as my pay day has changed. I was told they would send nothing was sent. January same thing I waited for the voucher till today. Today as I was working the decided to disconnect my Fibre again I called they said the matter is being invistigated I asked how must I work now? Now the payment link said its refusing to take the payment I don't know why it takes 4 months just to change method of payment I'm so annoyed. At work it's like I always have excuses due to this Fibre. No one has called to assist me with this matter this is really annoying.