I get it you're busy, everyone seems to want to upgrade at the same time but teach your employees composure. I went to the Apple Store instead because the lady you had checking people in was very rude. I walked in and said I would like to upgrade my phone, no smile, no welcome just "iight there are 6 people ahead of you" she said it in a tone that made it sound like me walking in was a inconvenience to her. At the Apple Store I was greeted with a smile, they were happy everyone smiled at me and there was a wait but the lady that told me the wait time was friendly about it and even showed me some cool things to look at. I will NEVER go to a Verizon store again.
Words to management, find out what Apple is doing and teach your employees correctly.