If you look at the bottom of the Royal Mail label, it should say In Post. Which means you can drop it off at the post office or in post locker but it’s annoying because you do have to print the label yourself. Not sure why they don’t generate QR codes for all orders though 🤷🏽♀️
If it’s InPost home delivery they use the Royal Mail sometimes to deliver them x
Yeahhh i realised on my settings locker to home you require a printer 🥲. Annoying lost out on £15 Thank you girls xx
Maybe contact Vinted? May be a glitch in their system