BAD SERVICE FROM MWEB

I got a very bad service from mweb for my LTE internet connection. March 25th 2026 I called them to enquire about stopping my internet as they were installing fiber for us where I was staying....so when I was enquiring with them about canceling my wifi connection with them, I was told that I have to give the 30 days notice. So I decided not to cancel anymore and continue with it....To my surprice 25th April my internet stopped working...When I called to check whats going on, they told me their system is showing that I cancelled...So it seemed like there was a misunderstanding between me and the agent that was assisting me on the 25th of march....So now my internet is not working and my sim card is canceled and their system shows I don't have any account or product with them...But to my surprise they still go ahead and debit the money from my account as they would every month, meanwhile my internet and SIM are cancelled....And the invoice says LTE:1Mtn 15mbps uncapped data that is nonexistent at the moment according to them and their system.....So I don't understand what am I being billed for....I called them this past week almost every day and no one is able to help me.