Regarding Item Not Received cases, the help pages say:

When you can ask eBay to step in
Once you've requested a return or reported that an item hasn't arrived, the seller should respond within 3 business days. After that, you can ask us to step in and help.

Yet I opened an INR on Monday morning 31st July, and the seller added the tracking number shortly afterwards, but it says in the case details:

Updated tracking details are now available. If the issue is still unresolved by 5 Aug, you can ask us for help.

Surely if it is 3 days, as per the help pages, then that should be Thursday 3rd?