MTN - Terrible service, lies, and schemes

I called in December 2025 to place a contract cancellation. In this call I asked the representative at least 3 times whether or not there will be a payment at the end of January 2026. They assured me that I will not have a payment as I've also made it clear that I wanted to cancel the debit order. The representative asked that I don't cancel the debit order until after the 1st of January 2026 as I still have a payment due then. As such I cancelled the debit order only after 2026-01-01, yet I was invoiced at the end of January still. Upon phoning customer care one agent claimed the invoice is a device fee while another suggested that the outstanding amount is for provisions made in December 2025. I've now spent approximately 5.5 hours on the phone with MTN - most of which I was on hold waiting for someone, I was transferred at least 10 times in attempt to reach a person that could assist me with this issue and still no response from MTN. As a result I will not use MTN ever again and I shall not be held liable for any monies as the service provider representative assured me that there will not be a payment and I've made multiple extensive efforts to speak with someone to resolve this matter but MTN is not coming to the party.