Whenever I have sold shares it usually has taken about a month to clear and for me to recieve the money. Ring and ask they will tell you an exact date.
The answer will (surely - it's got to be...) be somewhere in the offer paperwork.. From things I have seen elsewhere, that is not that well written or laid out. Good luck.....
I'm keeping my shares but am still waiting for the share certificate to arrive although I know somebody else has already received theirs. I suspect Standard Life have had to engage an army of extra temporary staff to cope with all the administration this float has involved, so it may take a little time to deal with everybody. Perhaps they're doing it on an alphabetical basis and your surnames are towards the end of the alphabet?
It did say in the back of there info book that you will be noteified by the 17th july of the the amount and checks sent no later than the 31st if it hasent come by the second week of august (i think) to get in touch with them im waiting for the postman to.