Good service on samsung screen repair

my Samsung screen wasn't working properly. It was cycling through inputs. The repair centre said they fixed it by replacing the power supply. (Which I paid for). Unfortunately that didn't seem to fix the problem. I took it back and they replaced the main board. At no cost to me....wooot. but that still did't fix the problem. Now they have replaced the screen and all seems to be good. So thank you very much samsung repair centre for your speedy repair on my screen this time and for your great service.