Window World:roller Blinds- Anyone Has Any Experience With Them?

[Netto 0]

Hi, I am wondering if anyone has engage this company "WIndow World" to install roller blinds?

As I had use them to install white roller blinds for my whole apartment after 9 mths, I realize some of the white blinds has turn pink

I called up the company and was told they had never encounter this before and that I am the first case they heard of.

Does anyone has any similar experience with their roller blinds?

Tks.

Additional info:

I have afternoon sun in the living room but out of 8 panels of blinds (in the living room), only 2 turn pink and in the study room (no afternoon sun) all the panels turn pink and the rest in the other 2 room are fine.

My helper uses water and white cloth to clean out the dust once.