I just called the QR USA call center three times between 0900 and 0930 EST today, January 19, 2017. Automated attendant answered quickly; wait time was under 15 seconds on each call. First call was to the regular number; second and third were to QRPC desk (where I got the same agent on both calls). Agents were both friendly and efficient, understood what I wanted quickly and either did it or advised me of what I must do. No nonsense, just friendly competent service.

QRPC PLT status was acknowledged with something along the lines of, "Thank you for being a loyal Platinum customer" on all three calls. There were several more steps I (as the passenger) was supposed to do after the final (third) call; but, "As you are a Platinum customer, we will take care of those items for you. You should receive written confirmation of everything within a week."

Although many here report sub-optimal interactions with QR Customer Service, I cannot imagine how my interaction with them today could have been better. This is consistent with my only other experience with QR Customer Service (as mentioned upthread), several years ago resolving an issue with several error fare tickets. Apparently the Qatari stars have aligned for me!