When the product listing satisfy the following requirements, and the shop setting turns on this service, it can be applied automatically: 1. 0 to 3 days shipping period 2. Package weight not large than 16kg, size not large than 50*41*34cm 3. Not dangerous goods

But sellers can also choose to turn off this function. Turn off method: Go to My eBay > Site preferences > Click & Collect, then select opt-out and done!

Reference: http://sellercentre.ebay.com.au/click-and-collect