AT&T Authorized Retailer

Stay away if you value your time or courteous service!
Today, my family and I went to this store to upgrade our AT&T mobile service.
«Jon» was working alone and serving another customer, so we waited. So far, so good. Another customer entered, and Jon went to serve him ahead of the three of us who had been waiting. He persisted even after we pointed out that we had been there first. Only then did he say he wanted to handle the single customer first, because he thought he had a less-​complicated issue than we did.
Maybe or maybe not. He was still struggling with the other customer’s phone when we left in disgust.
How could this have been handled better by Jon? Almost any response would have been better, but here are two possible ones:
1 (To new customer): «I’ll be happy to serve you, but these three people were here first, and I think their transaction may be complicated. Would you prefer to wait, or would you rather cone back later?»
2 (To us): «I know the three of you have been waiting, but would you mind if I served this customer first? He appears to have a simpler issue than you do.»
Of course, there are other ways Jon could have handled it. At the heart of each of them is customer respect and courtesy. Jon’s method lacked both.
Again, if you value good service and courtesy, avoid Jon and the AT&T Grants Pass store if you possibly can. You’ll be glad you did!