Who changes covers of seats??

ive had a number of problems with my driver and passenger seats. so much so that i have had to buy a new passenger seat from a scrappy but as i have a 206 fever, the matching interior is important. i have kept the old seat in the hope that somebody can change over the seat covers. but i have no idea who to appraoch and keeping the broken seat in my small flat is driving me crazy!! does anybody know who could possibly change over the covers of the passenger seat? i am looking to sell soon so urgent advice is much needed :) x