I had an issue with my iPhone 6+ when I bought it new from the Apple Store (full price) and had it activated and had an issue with someone on the other end that couldn’t hear me. I called apple and they tried to help me through the process and said you need to take it to the store and have someone look at it. But first you need Apple care. I said I just bought the phone 2 days ago new from Apple. They said they can’t do anything till you put Apple care on it. So I did and the guy ended up fixing in a matter of 30 seconds at the store. I said I want a refund on my Apple care as this phone still had a full warranty and I didn’t need Apple care to fix this problem. They wouldn’t do anything about it.