If an online store sent you a duplicate order, would you keep it?

[sentimetal]

I ordered a pair of jeans from a well known online retailer, with 24 hour delivery via Evri. Four days later they hadn't arrived, so I called the store's customer services. They apologised, refunded my delivery charge, and re-ordered the jeans. But then Evri delivered the original, and the re-order, so now I have two pairs of jeans. Should I send one back? If I don't, will they double charge me later? Wwyd?

Why bother resurrecting a thread 2 months later just to tell us that, @CointreauVersial ?

This happened to me years ago, it was actually Homebase. I had ordered a standard lamp and they sent two, DH accepted the second box at the door a couple of days after the first and did not realise it was a duplicate. I rang them and they refused to take it back, I was charged once. So I got a free lamp, one broke recently. Had them for about 15 years, cost about £40 each.