bad service and overcharged

i honestly feel something needs to happen about dstv if they don't fix their mess.earlier last year had issue with them because i canceled debit order paid cash they kept debitting while paid cash resulting in charges for their unsuccessful debit order.it was fixed after hustle while so called unhelpful consultant tells you we escalate each time but nothing gets sorted until you visit branch.i am on compact one of dstv agents approach me for the dstv internet October 2023 i signed up for the 220gb deal told ill get 220gb yet its day and night data instead all time data. activated services 27th October paid prorata as my debit date is the 30th on the 30th i called in upgrade to 400gb package before payment it was auctioned i got billed twice for the 220gb and 400gb package imagine month end November im told ridiculous amounts pay when call in told its mistake itll be fixed i was happy itll be sorted and had 404 due to me as there were times overpaid in past months i told them leave amount deduct only 150 from money owed to me and paid 600.end Dec it shows 1144 i have no idea where come from i called in told they will resolve mistake i told them fix it before pay 30th December the consultant said they escalated i called next day as saw no changes amount with i was over charged on top just discovered that they never loaded data for me December the data I'm using up to now was carried over from November data yet i paid end November to be covered December.im so disappointed in dstv now they disconnected my service yet been waiting the m resolve the error that they keep making promise they'll fix but never did.when visited branch the agent saw the issue i was overcharged and escalated which he could not do anything to fix until they sort it i oay monthly but now im sitting watching channel 100 whereby dstv is wrong and overcharged