I think you can order to collect from local store. Also ask at the stores as you often find stuff gets lost out back. One employee asks another and someone remembers seeing what you want.
BTW they often find stuff a long time after the sale. If a special sale item is found several months later they heavily discount. Got a Garmin edge 25 GPS cycle computer for £45!!!. The cheapest price I could find then for back then was £110. Although Aldi sold them for £79.99 when the sale came on but they went from everywhere in an hour or two (employees stashing them for mates and family). A couple of years ago now that sale. Not been as good for years IMHO. Sizing isn't best and quality went downhill on the cycling jerseys / jackets. Merino base layers, arm warmers under helmet hats, socks, etc tend to be quite good.