Ambulances and housecalls are inappropriate for sore throats.
So am not sure why these were organised and advised, unless there is more to this story than meets the eye.
Sicknotes other than for the purpose of claiming SSP for periods of sickness lasting more than 7 days are not part of the NHS contract which GPs have with the NHS.
They are therefore private work. As such GPs can choose not to do them or do them and charge accordingly.
Dunno who is getting obtuse here, but it ain't me.
FD