Debit order deducted after cancellation was done.

Due to the area we stay, signal has become a problem due to load shedding. Most our communication of people or companies must be with email or whattsapps. A cancellation was send to outsurance 10 February 2022 via email. I know they have tried to contact me but mostly receive missed call notification, and 1 time I did answer I informed them I was busy using my phone for navigation and can not speak to them. This month my premium went of and I still can not speak to them over a phone, as I have no signal and it seems they can not communicate via email.