Argos has a lots of good things. Good value products and great deals.
Once I ordered toys, my little ponies in boxes for gift and they sent me completely different product than what was on the picture. I got smaller ponies and I was very unhappy about it. I needed it that day.
The delivery was in time.
I contacted customer service and they were not nice. They did not understand the problem at all, ignored it. I asked them to remove the product from the website and it did not happened, the product was still available to buy after weeks. They told me that I have to go to a store to get refund, even I payed for delivery. Kind of expected to return it with courier too. I was lucky enough to have the store near by. I could return the tiny ponies and went across the road and bought the big ponies from an other retailer for the same price.
I have never got or used any discount code or voucher in Argos.
I think it is better to get things in store and check them there, if something is not great u can get a refund right there.
I think Argos`s system is complicated and I do not shop much there.