Shaw Carpet Poor Response to Mysterious Spotting Internet

When Shaw headquarters became alerted to my posted complaint here, they contacted me.  They retested my carpet sample, but declared it non-defective.  Though Shaw maintains that my carpet is not under warranty for any imperfections  I've cited, they did assume cost of professional restoration of bleached spots.  At present, carpet looks nearly good as new. Shaw's public relations department made an effort to rectify the problem in the most expeditious way possible. Note to carpet buyers:  It seems that some carpet brands are highly susceptible to bleaching from ordinary home-use products (like acne medications, sun tan products).  Though I could never trace how such products came in contact with my carpet, I have now heard reports of other incidents.  Steam cleaning may worsen problem.