In general, a screen cap doesn't do you much good in law, partly because you might have created it in photoshop but mostly because the terms on pretty much any web site will say that there's no contract until they have confirmed acceptance of your offer. This is something which goes back to before the internet to protect sellers from having to fulfil orders at a loss due to a printer's error https://en.wikipedia.org/wiki/Errors_and_omissions_excepted
If you got an email confirmation of your order, that's what counts and may form the basis of the contract, regardless of whether it exactly matches what was on the offer page or the web form you completed to initiate the purchase.
Cheers. Annoyingly the email confirmation just says the price and doesn’t say what I’ve bought. However, the printed receipt I received from the seller does have a line which says the item and, crucially, the quantity. So I’m hoping that will be enough.
In general, a screen cap doesn't do you much good in law, partly because you might have created it in photoshop but mostly because the terms on pretty much any web site will say that there's no contract until they have confirmed acceptance of your offer. This is something which goes back to before the internet to protect sellers from having to fulfil orders at a loss due to a printer's error
https://en.wikipedia.org/wiki/Errors_and_omissions_excepted
If you got an email confirmation of your order, that's what counts and may form the basis of the contract, regardless of whether it exactly matches what was on the offer page or the web form you completed to initiate the purchase.