2 lockers opening when posting parcel today.. help (no personal info)

Hi, I have been on vinted for years no issues. However today I went to send a parcel with Inpost and it opened 2 lockers when I scanned the code 😳. What happens in this instance? so obvs it’s a 50/50 chance of showing up. I have let the person know who bought n I have my fingers crossed, but just wondered if this had happened to anyone else before? If so what happened? It was a few items aswell. 😭. Xx