mobile

Hi...i was wondering what happened to my xperia z3...after 2 weeks of using my device fixed by sony service center due to broken screen which i paid for almost half of the price...i thought i was stress free because it was already fixed...but i was so dissapointed when i found out there are yellow tint color at the bottom of my screen especially when viewing white and gray color...this is so unreasonable...does anyone happened to experience this...?