She's most likely working out of the new Latino knocking shop in South Croydon. It's on Croham Road opposite the back entrance to the station. See my recent review of one of the other WGs at this place.
Been there a couple of times for a quick 'pump and run'. On past experience the girls are always the ones shown in the adverts - and they're often very good looking. But the place is a dump and I won't be going back. They've now got three birds working out of a tiny two-up, two-down terrace house.
Two WGs in the two bedrooms and a third in a downstars sitting room. Plus a maid and sometimes a bloke (security, maybe) in a tiny living room separated by a curtain. The maid and the bloke don't stop talking loudly in Portugese and can be heard throughout the whole house - plus they have South American folk music blasting out full tilt. It's like fucking in a Brazilian favela. Except noisier.
The beds are filthy and unmade (forget about clean towels over the top), there's tubes of lube on the floor and the whole place stinks of fags, fanny and someone else's spunk.
Enjoy