Just FYI, I've waited 3 weeks, and finally they've sorted themselves out and given me approximate dates for the start of sep (2nd / 3rd) and its 4 days in Preston, so you might find you're offered the same days.
I was told 2 different stories as to why there was a delay. One manager said theyve been busy, the other manager told me its because theyre adding a day of training due to introducing the use of tablets to put sales through on.
if you haven't had these already, you'll get multiple emails from HRSC about your details, uniform etc and also an email from Experian for your background checks.
shouldnt be too long now for you guys, I had my interview at end of July, was offered the job days later, and waiting until now for training, so more like a month really.
edit: and I've already been rota'd in for 2 days after training ends, to then do the in-store training. So after the training event, you're literally in immediately (provided you don't fail)