Change of excess without notice

Miway has told me that their online systems are malfunctioning and do not show you the latest scedule's. I phoned to query why my excess was higher than i expected and their told me their would get back to me. Later that day , the website suddenly updated showing new scedule's with higher excess's. This is the poorest service i have ever recieved from miway. I was going to leave miway a couples months ago but their persuaded me to stay on board, now their cannot deliver.