Bad service ever from vodacom insurance company

I bought an insurance for my phone Samsung galaxy Note 9 in 2018 then in 2019 November I lost my phone and claimed, it took so long to answer the phone before they can attend to my claim and later after some days i got my product then after few days I decided to cancel the insurance to join another company. I cancelled vodacom on the 21 of November 2019 and they continued to deduct in December and now in January I don't know what to do with this vodacom insurance company please help I want them to refund me asap together with my bank debit charges