Dishonest service provider.

Last month I called Vox to make a payment arrangement. I told them I am not able to pay R709x2 end of April, can I rather pay R1000 and then end of May R709+R409 the remaining outstanding balance. They gave me a call back and confirmed that payment arrangement is in place. I honoured the arrangement and paid however my line has been suspended. Vox did not honour their part of the arrangement. Today I called in at 8am I was only assisted with a call back 16h00 to which and advisor said to me yes they can see the arrangement but Alonia will give me a call back to discuss the way forward. So you agree to a payment arrangement now the payment arrangement had been made but you just refuse to honour your side of the arrangement. Vox is a dishonest company, no values, I have been having issues with them since I signed up over year ago.