Cell phone indurance Claim

Hi my name is Kehilwenyane Mo****di, i had a cellphone insurance with TFG under Finrite, and i lost my cellphone last year June. When i claimed they declined it saying the debit order did not go through on May. I gave up knowing that my claim was declined, but after that feedback they continued deducting money frm my account. And even doubled the premium on june, meaning that was money for May and June. After that i called them many times to know what is happening, and one of their consultant said my claim was not processed i should reclaim, even now TFG is still debiting my account and i dont know what to do now. Because they are taking money for cell phone that is lost. And the claiming paper were loaded on their system, but they keep on taking my money. And the Reff says TGG. Please help