I believe that u have to go into the store instead of just calling..I had gone in Sunday and they came out Monday..I guess a plumber is a plumber and they can charge as they want. But as far as Lowe's goes I found them very professional.
I was lucky to talk to the plumber pro in the plumbing department. I found everyone in the store to be very nice.
Although I was just a few hundred more than I anticipated, which at the time was upsetting but, after I calmed down I realize that they came out in a day and Lowe's is not responsible for the extras that the plumber can and will charge....I believe for any appliance u have to go to the store to order not online. I like Lowe's.