Worst worst worst service!

I went overseas in April. When I came back I picked up that I was charged 10x more than usual and I phoned Cell C to query this ( I turned off my mobile data and did not use data whilst overseas). The help I received was absolutely shocking. After numerous attempts someone arranged for my payments to be made via EFT instead of debit orders. I made a payment for an amount similar to what I usually pay and told the various Cell C employees I spoke to that I will pay the rest when I know what I am paying for. After numerous conversations, I received an SMS??? to say my account has now been suspended - no email/confirmation on what I was charged for? Nothing about my previous query??? Did that just never happen......?? My husband also tried phoning and yet, still no luck. Do you actually care about your clients, and more - about showing someone what they pay for??? I've been a client for a few years and never missed a payment and now you treat me like a ********. Really the WORST SERVICE anyone can ask for!!!