Funds availability
Although the buyer has paid, the funds will be on hold while we confirm that the buyer is happy with the order. We have implemented this practice to keep eBay a trusted marketplace. Check your payment status in the Payments section of My eBay or the Payments tab in Seller Hub.
I wouldn't either, but with the managed payment system, it looks like ebay won't release money until the item has been delivered. From a selling point of view, that's just mad.
Sounds like they can do the same under this system - with bells on. The buyer has to confirm they're "happy" with the order before I see anything....