Vinted & Returns parcels The locker will give you the option to select your compartment size on the screen. Please pop your parcel in the smallest compartment size available that your parcel comfortably fits in - never force it in! If only medium or large ones are free, no worries - you can use one of those without any extra charges. Just check the app to see what's available.
Sending with the InPost app If you've bought a digital label from the InPost app you will have already chosen your compartment size. This means the compartment will open right away, and you won't be able to change it at the locker. If you've picked a parcel that's too small, you'll need to cancel your label in the app and purchase a new one.