I was about to answer the following question, and still will once I get more info from the OP. However it makes me consider if this type of question should be on topic.
While this doesn't have the same type of problem price shopping assistance has, the book time won't become obsolete but it's going to be a very narrow question that may not help many other visitors.
Should we have a general post or article on how to price shop repairs, or book time. I believe there are some good online resources for this already, but many if not all will be behind a pay wall.
Should these questions be off-topic and if so is there anything we can do to help out visitors of this site to first understand flat rate time and secondly how to make sure they are getting quoted the correct amount for the job.