[Q] htc one repairs topic

Hello people, so i craced my screen and im looking for any service where i can fix it for money, i found this one

http://www.htcphonerepairs.co.uk/HTC/HTC-One

but the thing is i also want to change my rear case, but guy from this site told me they can only swap in same color, thats weird.

Do you know any other service where i can replace screen and rear case ?