Ridiculous data bill - direct result incorrect package

<p>On the 18th of May my daughter received a sms saying that there is unusually high data usage on ther phone which was a big shock because all the years with Vodacom I always insisted on a topup. On the 21st of May 2016, i went to Vodacom 4U in Garden Route Mall to investigate the matter. I was then told that the contract that my daughter is using is not a topup, but an open contract. We never knew this because she was using an old Nokia model which did not really use data. Raymond then help me to block further usage and process a migration to a topup package as the bill at that time was already on R5430.12 and he also printed a summary of the previous upgrade which was done at the Game store in George. We decided to go back to Game, where i upgraded the contract in 2014 to try and see what we could do about this. There we spoke to Stephanie, the person in charge at the cellular department and also to the store manager, Rudolph. We explained the situation and Stephanie looked at all the documents i had with me at that time. About a month ago she travelled to East Londen and the old Nokia had its days and was broken. She had to buy a new phone as she was travelling back to George and had no phone. The new phone is a smartphone. After we explained the change of phone to them, their argument was that the user changed the cellular device and because she did, they can't take any responsibility. I feel this is very unfair. First of all, i ALWAYS insist on topup packages. Secondly, the package i chose had a R3000 gift voucher, now if this promotion was not available on a topup, the consultant should've explained this to me properly. If Michelle, the consultant did her job, she would have noticed that my previous package was topup. Surely it is part of her job to look at this type of details! Normally my cellular bill was no more than R500 for many years. April's account is R1254.60 and May, which have not even been billed yet is R5430.12. This is ridiculous. I can not pay this. We never enquired about the package as it was never high, but because if this incorrect package, after having no choice but to buy a new phone, i now sit with a total data usage bill of over R6000. This is not acceptable. I would like this to be investigated and addressed as there is now way i can afford this type of bill. </p>