If you take the hint from Holdposition and give them a call, then they might be able to do something if you are desperate to be a the controls again so soon. The CAA can be very accomodating when you bluff your way. I managed to get an MEP issue in 3 days from posting to recieving. I guess you could try and just come up with a good excuse...
Normally if you wait, they take between 10 days and 4 weeks so I have been told. At least it's not as bad as waiting for ATPL results as with the PPL, you know you've already passed!
Cheers
obk