Got a job end of week, a wool carpet with large coffee staines (3 of em). There a few months old and the client has had a go with the good old 1001 :

and defo made it worse (bleaching marks and burst pile).
Told them there aint much hope, if at all for any improvement let alone removal which they say is ok. Just wana know if there anything i can do for even just a 'slight' improvement.
Also there a small hallway by the bathroom (same carpet) and there are 4 small black marks dotted around. Tryied a few tests but no transfer, any idea what they culd be???
Cheers all
j