I used a Groupon and was overcharged by almost $10, contrary to a quote I received via email about substituting synthetic oil (quote as $6/qt) for regular oil. Instead they just subtracted the value of the Groupon from the cost of a synthetic oil change, which cost me ca. $10 more. Over the phone, they agreed to refund me $10 the next time I came. When I did come in again, they balked. I even emailed the manager with all the documents and I have yet to receive a $10 refund. What's $10? A lot to someone on a disability income. It also means Honest-1 is UnHonest-1.