Debiting account after requesting for a cancellation

The worst internet service provider ever. *******. I sent out a cancelation email on the 22nd of December 2021, no one responds to the emails, all you get is an automated email with a reference number: MCL104360 . They are still debiting our account since we asked for a cancelation. This is pathetic! Every time I call I am told someone will call you back and no one calls me back. These people are *******, do not sign up.