Paying by AMEX will not let me choose a different delivery address...

[Infinite]

but I can pay by PayPal which is linked to my AMEX and pick a different delivery address...

Sense was not made and some 3rd party company probably benefited somewhere down the line.

Just wondering the reason for this as I have never come around this clause before.

[ayeaye]

Would also like to know the reason behind this - no problems using Amex on another site and getting deliveries to work, yet Scan won't allow this. Presumably something to do with their merchant's agreement with Amex, but seems strange since it's clearly not an Amex requirement if other sites can ship to alternative addresses.