A negative experience

Maybe I am not understanding something here, Took a phone contract to boost credit score a bit also with the intention of getting other devices on contract by adding a line

Told the month of the contract that at the end of the next month I would get debited, got debited the first of that month, was told my account was in arrears, spoke to consultants about the activation fee they said it had gone through, few days later line gets disconnected I call to ask how could that be if the debit date was supposed to be end of last month, didn't get a clear answer, payed the outstanding fee and credit score tanked still that's the worst part for me, in app bill payments fail too many times, frustrating, I've had a Cell C contract for 2 years now and I have not experienced half the things I have with them in the 2 months I've had this vodacom contract, it's just a mess, called so many times I might as well just tell them to cancel the contract already, genuinely disappointed.