Please process my claim because your staff made an error

I have been a discovery insure client for a few years now. Recently my sister and I were insured on one plan. I called in on the 27th August to cancel the plan under my name but to ensure that my sister would be continuing with the plan under her name. The consultant asked when i want to cancel and I rep**** immediately ( to cancel under my name only). She then said that I would no longer be covered as of the 27th I then responded to her that "no the vehicle still needs to be covered" and she said yes the vehicle would be covered under my sisters name and she proceeded with telling me I will get a refund she did not even say why( I received the voice recording from discovery to prove this ) at no point was I told that the vehicle would not be covered for 3 days , the consultant Safia, guranteed that the vehicle would be covered under my sisters name. then on the 30th August someone bumped into the vehicle. We called discovery to assist and only then were we advised that the policy no longer existed. Discovery now refuses to process the claim as a result of their consultants error . My plan was active for the month of August and fully paid for. the consultant did not advise that she was refunding because the vehicle would not be covered for 3 days. I honestly did not ask for a R200 refund now I'm stuck with a huge bill to pay because of Safia the discovery consultants error. To top it off my sister was debited on the 03 September for her new plan. So the vehicle is not covered for the accident but they cover the damaged vehicle after the accident and still take funds from the account. The voice recording was made available and it is clear the consultant made an error with her wording but discovery still refuses to process the claim or assist us