Very unlikely. Apple will always prefer a repair service over a refund unless you have a lemon after 2 or more repairs. Maybe if you discuss your issues with the manager, persuading him/her enough to offer a refund than it may be possible.
Update on my experience:
So this Monday I FINALLY received my 14th rMBP and it is a Samsung.

Apple has successfully satisfied me with this gorgeous display, defect-free unit, and cosmetically perfect machine. There is no dead pixels, yellow/pinkish tints, and above all, image retention.
Also, based on what I noticed between the 2 manufacturers (because I still had possession of the LG), it appears the Samsung is more brighter by 1 bar, washed out (kind of matte feel), sharper in texts and textures, and most importantly, IR free. The LG, on the other hand, is more color accurate, has deeper blacks, wider viewing angles, uniformity, and has beautiful contrast levels. Overall, in spite of the benefits the LG panel has, I still preferred the Samsung that has similar qualities and for being IR-free.