Pathetic on line shopping

I ordered stuff on line on Saturday to collect at store to date no OPT received as per store to release parcel , This also happen last month as requested delivery I waited 5 days eventually I went to the store to collect , I had to wait at least 20 minutes as the staff had to track the parcel, This is not acceptable, I would like to cancel the order and get a full refund as I have already bought the items from Dis chem-order nbr 260523-801-0266