There is, but we encourage users to attempt to resolve the issues by themselves first, with the management of the business. In order to do that, we advise you to keep a written record of all your interactions with the business. If a resolution is not possible, then you can come with us.
Do you want to know how to submit your possible complaint?
No, that's not necessary right now. I think i'll try your first advice.
Say, I have a doubt. Can i ask for those parts which get replaced on my car?