Tesla Buyer Ref Credit

Picked up my Tesla the Saturday just gone and was wondering how long does it take for the buyer ref credit to be passed over to your account?

The person that ref’ed me has had their credit through and I’m yet to see anything?

Does anyone know how long this takes or where I can look for it?

There’s nothing in my wallet.

EDIT: This specific to UK and for the lease option in which we £500 credit towards shop and not off car

EDIT: received credits this morning - I’m guessing it’s after the cooling off period (14days) as it’s the 14th day since delivery