I accidentally paid for the same item twice. Can I cancel one?

I accidentally paid for the same item twice. Can I cancel one?

Coin 23 item

I know sell number

1. Use item missbuy ticket in "Store" section if it is less than 24 hours after purchase.
2. How can you do it, if there is confirmation tab and timer that doesn't allow to click several times/buy in a bulk or fast?