Cancellation problems

I dont understand why I'm being billed for an extra month on a month to month contract? And it's not even like I'm leaving mweb I'm just switching over to fiber. If it "starts" like this... I wont be having Mweb fibre for long and will be switching to a other ISP. It's not the customer's fault that Mweb buys bulk data and will lose out if a customer cancels. You already billed me for May, why do I have to be billed for June too? People are having financial difficulties during this pandemic and you still find a way to get the last little bit of money that we have. I should have looked at a other ISP and cancel Mweb completely. Highly dissatisfied and disappointed.