Don't trust them with your money!
Bought a £300 TV online for delivery. Money came out of my account, but the actual order mysteriously disappeared. Ended up with no TV and had to wait 7 days to get my money back.
Apparently this is quite a common occurrence judging by the reviews I've read. The only problem is that under the current circumstances we have no choice but to pay online with Argos before we can collect anything from the store or have it delivered, which means you're taking a HUGE risk of losing your money whenever you attempt to buy anything.
Best to avoid shopping at Argos all together.