Some surgeries allow self referral or self re referral to specialist services, some do not. I believe that GP Surgeries now fundhold to an extent. They block purchase (commission) a certain amount of service from things like hearing services and are charged at a premium rate if they exceed their block purchase. This is because specialist services are staffed according to expected need (they can only spend their income) and if the need is exceeded then they have to purchase extra services in at a premium (locums and bank staff). The re referral from the GP enables the GP service to keep a handle on what they are spending and to siphon off people who want hearing aids because the neighbour has them (yes really) or people who have got wax blockage and so on. I would have thought, in your case though, it could have been done by your phonecall rather than your having to actually go and see a GP.