Wedding photographer

I need help! We hired a wedding photographer that excluded the engagement session. We scheduled our engagement session weeks ago and it has already been rescheduled twice. Because it’s two cold she says and it’s to windy. We understand the cold weather but our wedding date is in cold weather and we live in the panhandle. Will she refuse to take the pictures then also. My fiancé and I are just both very upset with the service and her lack of care. We both work ver demanding jobs so we have to have it scheduled she is now trying to move our Saturday appointment again to a Friday. So we recommend possibly going to a cabin to take some engagement pictures to get out of the cold and wind. Then she complains it’s going to be to dark. I am just so frustrated I don’t plan on having lights in my reception so how is she going to take pictures. I just feel like it’s excuse after excuse. Now she just wants to take us downtown and take pictures in front of the brick wall. And a field we love the field idea but just a brick background no. I’m not paying 500 dollars for a engagement session in-front of a brick wall.