Unacceptable

I called the call centre yesterday for a quotation and gave my details (calls are recorded so all this info will be on the recording) so I call today and a really nice agent named Hashim and his supervisor ****r speak to me and get me a better premium. Only going through all the details Hashim tells me that the previous agent spelt my address incorrectly (which is no fault of mine ) so now the premium is more expensive and this is my problem. completely unacceptable as my car is at the dealership and I am unable to collect it without insurance papers. I feel as a client I should get the rate which was originally offered to me.