Recently serviced Rolex loses time

[etp095]

My girlfriend just picked up her moms date just, from a Rolex dealer in Denver for the second time. She had it serviced by this dealer(13 week wait), and when it was picked up it stopped running later the first night, just before midnight. she returned to the Rolex dealer and left it there for another 3 1/2 weeks. She's had it since this past Saturday, now it's losing 15 minutes. Her mom is obviously very upset, since she paid $850 to have it serviced. To make matters worse, they live in Colorado Springs, and had to drive to Denver(1hr 10 minute drive), the closest Rolex dealer to them. I told them to give the dealer two options, send the watch to the RSC, and have them reimburse her, or just refund her money. Since they obviously can't seen to get it right. What are you thoughts?