Loose/sliding Home Button After Repair

So, I got my iPad Air for Christmas and unfortunately a week later my son knocked it out of my lap and cracked the screen. I kept it broken for a few months until I had the money to get it fixed. I took it to a local repair place and had numerous issues, but the coup de grâce is the home button issue. It is loose and even slides up under the screen. The people at the repair place told me it was not faulty parts, but me being rough on the home button. I haven't been able to find a single person suffering from this phenomena. Prior to all of my repair issues (basically before they got their grubby paws on my device) my home button was solid and worked. They told me all the parts come straight from Apple and that the parts are perfectly fine. Has anyone had this issue on new, refurb, or repaired unit?

Thank you! I already went to them once about it and they "fixed" it, but it's still loose. I'm tempted to go to another store and ask them about it and see what happens.