S-Line half leather seats stained after using stain remover

[79stef]

I recently decided it was time to give the half leather s-line seats on my B8 Avant a clean.
I had a few minor spots that I wanted to remove so went for the Autoglym upholstery cleaner in a spray form.
At first, I thought it had done the job, until the seats had dried and a large stain (previously invisible) appeared on the passenger seat.
I had another go at removing it using the same product but to no avail.
Two days later, I had a sofa and carpet professionally cleaned using a wet vac. I asked the guy to try to remove the stain in my car too. It didn't shift it at all.
I am now at a loss as to what to try.
I am based in west London. Can anyone either recommend another product or a company who may be able to help me.
Many thanks in advance

 

[Turbo jay]

If your cant find another cleaner That will remove the stain, with you could always try a fabric dye to try and cover it.

 

[79stef]

Thanks for the suggestion Turbo Jay. I have actually considered this as an option too. However, as the seat is not one colour (ie the stitching is slightly different) I don't think I'd be able to achieve a satisfactory look.
However, if all else fails....