Sorry I'm a bit confused - why would you send a picture of the colour catcher? If they dye was on the outside of the nappy (most nappies I know have undyed inners) why not send a picture of the inside of the nappy? I've not had a nappy dye my daughter before but wouldn't it have transferred to the inside of the nappy? Best to send a pic of the inner surely?
I've used colour catchers in with my washing and they've come up with plenty of dye residue from a normal nappy wash yet nappies have never dyed my daughter's skin!Wool dye OTOH has - though it has always come off... But that's besides the point really...
TBH I know it might feel a bit wrong
to not receive any 'compensation' but the seller is perfectly within his/her rights to offer refund/return only... As far as I know anyway. I'd probably be a little miffed but then again if I loved the nappy I'd have to keep it.
From memory blue is one of the hardest colours to fix too - the deeper/darker the blue the harder to fix.
How about you try Beth's suggestion and see how you go from there?
I know we expect perfection from WAHMs but they are only human and we can't expect popper placement etc to be perfect 100% of the time! Though I'm sure most of the wahms I've ever dealt with are perfectionists as I would be!
So anyway getting off the point here - I'd send it back for a full refund if I wasn't happy - and if I really loved the nappy I'd try to fix the dye further and keep it.