AVBOB Deducting Money *******ly

I have been with avbob for over 15 years. The problem here Is that I gave them control over my money by allowing them to deduct premiums from my payslip. I have sent Avbob an email of cancellation in January; they responded after 8 days that I need to send a cancellation letter. I send them that letter on the same day, after 8 days they respond to say one policy is cancelled but for them to cancel and refund me on the other policy, I need to submit the bank statement. I then responded immediately with the bank statement. I was then surprised to see the deduction on my payslip and questioned validity. They decided to ignore my email. Yesterday when I called them, I was told I need to submit the “certified” ID for them to cancel the policy. I have redirected the budget to other things; AVBOB is costing me so much….