Supersonic rude and arrogant no show customer service

Good day

i send an email in January to inform Supersonic that i am moving because i wanted to have fibre when i moved in, i struggled with the calls the whattsapp number was not working i even went to their offices, they dont work weekends BTW, i moved in without any Commnications from them, i send on FB messenger and now i am without Wifi, i tried canceling and eventually i cancelled on the website and now i am paying for a house that i am not even staying in. the new tenants can get wifi because they refuse to cancel, the customer service is useless and rude an arrogant. i went to the bank and cancelled my debit order, and not even a call. i have seen so much queries and complaints, close this place down.