We've just had our bathroom redone. We got several quotes - the lowest could also do it the soonest, so we went with him. We are pleased with the work. However, he just spoke to DH about payment, and asked if we wanted to pay VAT. Was very surprised when he said yes. DH just told me that the initial quote was verbal (I gently pointed out that in future it was important to get all quotes in writing!), so I'm pretty sure that we're going to end up paying 15% more than we were originally quoted.
It's still a fair price, so we would have used the guy anyway - but I'm really annoyed that he thought this was acceptable behaviour. Should I try to negotiate a discount on the grounds that his original quote wasn't legit? Should I report him to HMRC?