Terrible trade in experience

I’m still going through a terrible trade in. I was lied to the entire time , 6 hours on the phone . This last time I was on over an hour assured they would email me instruction once again to return my phone because it had find my iPhone turned off even though they returned it telling me it was not. Returned it a month after they assured me things were fine.  I would not have traded in my device had now this would be a scam.  A multi million dollar company and they run a scam with trade ins . I’ve never felt so frustrated with a company full of

liars .  Everyone on the phone just tells you everything is fine so they can hang up and stop trying to help you.