preserved Wedding Gown Yellowed

Its a huge scam by companies who claim they are preserving the gown, but they are really just boxing it up and charging an arm & a leg for the "service". They count on women not opening up the box for many years, and by that time, the company has gone out of business or whatever. Sorry this happened to you. If there is any way you could remember who charged you for this rip-off you should go back to them and demand they fix the gown or replace it, or something.