They are unlikely to give unbiased advice which would harm sales in the peak shopping period of the year, as would any other online retailer.
Yes, but the people here are 100% going to give 'advice' that is completely useless. He might as well walk outside and ask a random passerby their opinion as it'd be as much use as anything anyone here will say.
If the OP actually asks Play they may well say it'll be there in time but if it doesn't turn up (which, lets face it, 5 working days before christmas is likely to happen) at least he'll be able to complain (which often results in a freebie of some kind with this sort of thing) if they said it will be there in time.