Worst first time impression. NO URGENCY OR ACCOUNTABLITY

So Mondo falsefully sold me an MTN 5G contract in January 2022. I cancelled within the cooling off period, yet i still got charged. And i am getting charged every month R999 for a contract and device which they apparently stopped and took back after the 4th day!!!When i contact MONDO the first response was they waiting on DSL courier services, then ever month after the excuse is that they are waiting on MTN, when i contact MTN, they say i need to pay a cancelation fee of R5890 on top off the R5994 that they already taken out over the past 6months. There is NO URGENCY nor ACCOUNTABILITY. If i debited again i will have to be forced to go the legal route as this now is ******** and a breach as per their contract. The ONUS is on them to see everything is followed up end to end, right now i have wasted countless hours on the phone, at my expense. I need to be compensated. Its 6 months of fighting and now i am tired.