That is insane!
The private practice I work at is 68 quid for an initial hour consultation and 50 quid for a 30 mins follow up. Us physios are on a mix of rates from about 39% upwards. I'm on a 50/50 split. I qualified last May, so much less experience than yourself. I'm on either 50 quid per hour if I do two 30 min follow ups or 34 per hour for an initial consultation, with the hope of course of getting a fair few follow ups from that. This is London so might be inflated, but 9 pounds an hour sounds like what you would get answering phones in reception. Clinics I have had experience with tend to be 60/40 in your favour or 50/50. I bet your boss is laughing all the way to the bank!