Burger King complaint: Cold food

I visited Burger King with my daughter on Saturday 9th April and ordered our meals, when I was given my food it felt cold so when I unwrapped my burger the extra bacon was cold, the cheese slices were hard and cold and not melted onto the burgers which were also cold. I asked the member of staff that served me if I could have food that was hot as this is clearly cold however when she handed my replacement burger this was also stone cold!!! I returned to the counter again and asked why this burger replacement is just as cold as the previous order and could she heat it up in their microwave as this is awful only to be told they do not have a microwave and could not heat up my food so my choice was eat cold food or no food. My daughters veggie whopper was warm and edible but mine was not and I was refused a refund!
Therefore I would like you to resolve this problem and refund the money spent in your Burger King store asap for the whole meal plus.