Buyer says parcel locker broke down and they’re waiting for a new QR code. Is this a thing or a scam?

Hey everyone!

So, I sold an item on Vinted and the parcel has been sitting at the buyer's pickup point for a couple of days now.

I messaged them to ask when they were planning to pick it up and to remind them about the deadline, so it doesn't get sent back to me.

They replied saying they actually did try to pick it up, but the locker machine had an error/broke down. According to them, support told them to wait because they need to generate a totally new QR code and pickup number for them.

Since this is the first time I hear about this: has anyone ever had this happen with locker pickups? Is it a real technical issue, or are they just stalling / lying?

Should I just wait it out or contact Vinted support myself? Thanks in advance!