Mtn insurance!

Hi so I can see a lot of complaints about Mtn on here about insurance! And I am having the exact same issue! I cancelled my insurance, phone them more than once to be told yes it's cancelled only to see in still being billed for insurance! I have tried many ways to get the charge removed but it seems like they Dont know what the hell they doing I have also been using Mtn for years! But have had a change in heart and would not recommend Mtn to any one! Stay away it's just trouble! They money *******!