Billing Queries for canceled subscriptions

I have taken up internet services with webafrica last year 2022(staying at Mabopane Block B) I think in September or October. When I subscribed was told that it's not a contract but am billed month to month and can terminate service anytime however must give 1 month notice. I took the package which cost R399 per month of which for the1st only paid R19 as they were running a promotion. In December 2022 we moved from the place and moved to a new place in Pretoria west. Well I tried to check availability in the area in order to continue with webafrica but found out the area was not covered. So I requested to cancel my services in December 2022. Then I got confirmation email saying my services will end 1st February 2023, meaning for January I will still have to pay. My understanding is that my last payment was supposed to be in December for January 2023 subscription. But to my surprise to this day am still being billed. I have All the evidence in this regard.

Please help me get my refund as I did request for my refund in February 2023 and I submitted everything required on my side but to date I ha e not got my refund instead they continue to bill me don't understand why.