I don’t know much about that as I’ve been away from the forums quite a bit from being busy.
But one of the things that I found to be very helpful in avoiding these types of things is to have a very clear order description and video explainer. If people are mistakenly ordering your gig for a specific reason, there is your hint to update the description or make a big bold statement.
For example, I provide WordPress optimization services, after having a couple of not so happy clients because they wanted to optimize the MOBILE side of their website instead of the desktop, I put a big bold disclaimer saying that I optimize the desktop version of the website and that mobile speed results may vary.
I also ended up putting a disclaimer about cheap website hosting companies. If you pay $3 per month for your website host and you have 10 websites, you are bound to have a slower website and there isn’t anything I can do about it.
Education my friend!