Mufflers repair service near Hiram, GA

I made an appointment with them at Decatur GA location. Got message from them that appointment is not confirmed until they will call or send confirmation message. They never call or massaged me for confirmation. I also requested them to call me for the direction to the place, because one time I went to the address all I saw was some kind of warehouse place and ramp. They did not have courtesy to call me back.

brought my 92 e30 in it on oct 2018 and they did absolutely no work..quoted me 5000 with 1200 deposit in jan 2019. The quote had things that have already been replaced like ac compressor and and a headgasket that has no miles on it because i changed it my self before i brought it in .. I trimmed the quote down to 1400 and the deposit was 500 i thought that is pretty high...but i paid it..against my better judgement because i could feel the racist mentality when i came into the shop to talk about the repairs to my car in nov 2018 .i believe since they couldn't prey on an uninformed black car owner they chose to let my car sit for 2 months and when i called for an update on feb 13, 2019, they informed me that its best to come get my car and that they haven't done any work