Same sort of thing happened to my daughter on her account.  She ordered several phone cases, they were marked posted and about 3 days later she received a message saying one was not available - the nicest one of course !  Lol, she puts up with my ranting all the time, so she messaged back and said, no, you have lied, you marked it as posted - so find one !!  Mmm, will have to check with her, not actually sure of the outcome of that one 🙂

Have read another post which said a lot of the Tracking Numbers are fake also !!  I'd like to see us get away with that !