I've just been doing an audit of my Tesco points as shown on the bottom of my till receipts and comparing them with the actual amounts spent over the past few weeks and there seems to be 'slippage' in the total.

Almost 2,600 points seem to have 'gone adrift'

I'll wait a couple of days for all purchases to post...although generally 24 hours seems to be enough except at weekends...then check with the call centre if all is not well.