Got this via email –

Make Tim Hortons® a part of your every day, delivered with a free* 10 pack of Timbits® on your order of $12 or more .
Use code TIMBITS at checkout. Plus, when you spend $12 or more, enjoy a $0 delivery fee!* Now through August 2.

Might not be for everyone but looking at how Timmies is helping the nation’s frontline workers through these times, I am supporting them and every little helps. Go Timmies Go !!!

$0 delivery fee on all orders – however for the free TIMBITS you have to order for more than $12 and yes.. all orders come with the usual DoorDash Service fee..

Thanks to user @KenA for explaining the details.. hence editing the post.