On December 2, I bought five Google Homes from Currys (via eBay), to be Christmas presents for various people. On December 4, four of them arrived. I waited a couple of days, but the fifth one didn't turn up, so I used the eBay "communicate with seller" to ask what the situation was.
I got an automated reply; I had to phone them or email them. They didn't seem to use the eBay facility.
So I phoned them, which had the effect you'd expect. Long hold queues, shuttled from department to department, and eventually someone said they'd look into it.
And I also emailed, which had a similar effect.
By December 14, nothing had happened, so I raised it on eBay as an issue. In the past, that has led to rapid results - in this case, it led to nothing.
After 8 days of nothing, you can escalate it, and eBay steps in, so I did. But eBay told me that there had indeed been a delivery (yes, I know that, that's the four-not-five). So I explained again. And they repeated that the delivery had been made.
And they suggested that to take this further, I had to report it to the police as a crime and get a crime number, then eBay would take it further. Wait, what? I'm being told to waste police time on a £29 parcel that has gone astray?
So I left it a couple more days, and then I got an email from Currys, telling me they've done a refund of the £29. Hurrah.
But. So much for the eBay guarantee. Will I be so keen on eBay in future? I don't think so.