Misinformed personnel and bad service!!!!

Cell C must have the worst Call center out of all the service providers. Every time you phone you get a different answer to the same question. I buy data online for my router. I phone in periodically to check my balance. 3 weeks ago I phoned in and was given my data balance of 25-30 gig. I was told it expires on the 12/7/18. All i had to do to carry it over was purchase again before the expiry date. Two agents confirmed this. I did a sim swop yesterday as the card was damaged only to find that I only have 5 gig left, the rest has gone and they can't help. According to the next person I spoke to, those data bundles dont carry over! Wow. After spending all my money on calls and data etc, it all goes up in smoke because of misinformation from uninformed personnel? Cell C.........if I had a choice, I would never use you again......ever. Enoch (team Manager).........I think you had better contact me as I want all my calls that have been recorded, played over so Cell C can see what a disaster this is!!!!