Cancelation of services

I have never dealt with such unprofessional and *********** company in my life. It is a worst nightmare to get hold of someone on phone and when you eventually do they just not interested and don't care about their clients. October 2020 my premiums where increased without any notification. When I call and eventually got hold of someone, confirmed they have missed sending my communication and apologies. I have requested telephonically and emailed my request on the 5th January 2021 to cancel their services with them. On the 8th April 2021 I sent a follow up email since they still continue to debit my account. To date I have not received any feedback or being contacted on my request to cancel. They still debiting my account without my permission. This is ********** practice and I want my money refunded from the day I have requested cancelation of this debit order.