POOR SERVICE AND UNAUTHORIZED DEDUCTION

I canceled my service with them after moving to a new place since I cannot move with the router. I tried to make use of their Whatsapp service which happens to be very useless and unhelpful. Today they took the last money from my bank account, which I never authorized as I know I have canceled with them. I am no longer staying where the router was installed but Webafrica is now giving me a run around on Facebook. I need my money back ASAP! THIS WAS NOT A CONTRACT!