Can't use ebay/PayPal voucher - how do they work?

[ifIwerenotanandroid]

Ebay sent me a voucher for £5 off a £10+ spend. I put something in the shopping basket but couldn't see how to use the voucher in the ebay checkout, so I googled it & it seems you need to manually enter the code in PayPal.

I just bought something BIN for £20, so should've qualified, but at the ebay checkout I selected PayPal & said pay now, & it didn't send me to PayPal but just stayed in ebay & wiped the screen. I've paid full price.

How the (beep) (beep) are you supposed to use the (beep) things?

You need to add to basket, rather than BIN, go to basket then there is a choose payment option where you Add Voucher

Cheers! None of the ebay instruction pages I found tell you that. They also say you'll be prompted to input the code. Nope.