It would be no stars; except that option isn't provided. I arranged for an appointment to look at invisalign braces. I was told I would have to pay £50 for the appointment, though this would be refunded to me immediately after the appointment (I was told I only had to make a phone call) regardless of whether I went ahead or not. Well 6-weeks and countless phone calls/emails I finally got my payment. Though no apology for the delay and my time taken trying to get this back. I get the feeling it may well be they hope you give up as it is so painful. Also, very lucky to actually get anyone to pick up the phone, though prior to the appointment they couldn't have been friendlier and communicative..... I would not trust them with my money for very expensive braces when they couldn't provide customer service for £50!