What should I do?

https://imgur.com/a/fhN5omu

(DW a friend of mine which is why there's no OPSEC)

So I'm a reseller. I was sold someone an ID a while ago but they told me it never arrived. Tracked the ID and it says that it has been delivered and signed for. The 'customer' is telling me that they have definitely not got it and that they even called the royal mail to find out where it is - the ro...