Yes, you will need a separate returns label for each parcel you return. Where possible, we recommend returning items in one parcel (please return separate orders separately). You can only use each returns label/QR code once.
Don't forget that you can return any order to store for free* (returning to store has changed slightly, find out more here).
Find your nearest store here.
* For Channel Islands customers, you cannot return branded items to store as of yet.