DStv payments

I have been using DStv internet FLTE since last year September and I have never skipped the payment but now they're telling me that I have skipped a payment n disputed a payment in November I provided the proof of bank Statement n it doesn't correspond with what they have on their system they keep on charge money..... again I have a decorder that reconnected in December I have paid today for my monthly payment they're telling me that it will take 3 days to reflect so they won't be able to reconnect me I mean I pay every month end now. I would appreciate if we can cancel the contract I can provide all the proofs but still they're not helping this girl on WhatsApp in the name of Lerato kept on ask questions irrelevant to my need