False advertising of delivery options

I placed an online order on Monday. I opted for store Express delivery in 1-3 days. It is now Friday and I still don't have notification to collect my order. I phoned courtney at customer service and she says the warehouse had already left on Monday so only got my order the next day. Even so, the 3rd business day it should have been delivered by Thursday. So even though I got a screenshot of the date ordered on Monday on my mr price app. People must only order when the warehouse guys are there and don't expect store Express in 1-3 days even though you pay for that delivery. Just some of the fine print the company doesn't make you aware of. Very dissatisfying.