As a language tutor I also paid my one year subscription as a Spanish tutor in Manchester area. They put me in touch with several students and I also taught in company lessons. The private students were not a problem at all because they will pay me directly, but after having followed all requirements and indications they asked with the in company lessons I am still waiting to get paid since November 2013. Their behaviour is completely unacceptable avoiding calls and emails and not replying to any of the enquiries that me and other tutors in my area have made. They lie about when are they going to pay and it is a nightmare to get hold of them. It seems quite clear that they couldn't care less about tutors professionalism but the fact that they get paid by companies and we keep their business going.
I registered with them as a Russian tutor in Central London and paid their subscription fee. 40 days after - no inquiries at all. And no replies to my questions. However, they are still actively recruiting tutors. They also deleted my and other people's feedback on their Facebook page - very dishonest practices. Beware!