I took my 2007 Honda in for a transmission leak. They told me BOTH the transaxle seals need to be replaced.
I wondered what was the chance of both the seals being bad on a car that new but took their word for it an told them to replace them. They charged me $495 to replace the seals. A couple of weeks later I noticed I had a leak again. When I took it back not only did they say it wasn't the same issue they said they couldn't tell me where it was leaking from and they would have to drop the transmission to figure it out.
They told me this would cost $500 and if I decided to have them fix it the $500 would go towards the repairs. I decided to take it to another shop for a 2nd opinion. The 2nd shop found that one of the seals Cottman replaced was leaking.
They replaced the seal for $90. It's been 3 months now and I have I have had no issues with leaks since the 2nd shop made the repairs.