MTN BOSSA NETWORK

The asked me to pay extra for my phone cz it was ****** n i should pay the early upgrade and i agreed.i also asked them to reinstate my debit order for the 20 of every month and they said they would. on the 20 they did not debit on the 21st they did not debit when i phoned and asked them why not they said they previous person i spoke to said she did and the new person said she diddnt activate the debit order and and they said they activated it so the next day they didi not debit and they said i should pay when i asked how much they said 738 which i did.and then on the 29th November they debited 738 and when i phoned them today they said they did debit the money on the 20th however their is no proof that they debited on my bank records.now i am short foe this month this network is driving me crazy. The worst network yet and ive been vodacomn i still am and my family is with cellc as well MTN is *** network