Dial Direct 6th time lucky

I am sick and tired of these people's **** and terrible customer service. I bought a new car and is requested before i receive the car, proof of cover must be shown.

I called dial direct 4 times as they are *********** , to explain the same thing to 4 different agents.

I told the agent very simply, I have an existing car covered by dial direct that I am trading in, i will be releasing the car by the end of the week, i am receiving the new car by the end of the week, i want to cover the new car from now.

They add the new car correctly and keep the old car correctly (after the 4th call), they then debit my account for both cars the next day( my original car was debited for already, so i was double debited for the old car).

I called in today, and the agent tells me i have to send through proof of sale, i told him to ****** off as its non of their business and its their mess up, the old car is being removed from cover so refund me my single debit (as they double debited me) for the old car. The call then conveniently ends, and no call back is given.