I just place an order using demo.tastyigniter.com and found the problem: wrong pickup and delivery time. Pickup time set as 15 mins and checkout success page shows:
Order Date: 02/08/2019 11:01 am
Collection Time: 02/08/2019 11:30 am
It's added 14 mins extra, I have also placed an order for delivery, where delivery time set as 45 mins:
Order Date: 02/08/2019 11:21 am
Delivery Time: 02/08/2019 12:45 pm
For delivery it gave 84 mins, which is 39 mins extra then the normal delivery time which should be- 12:06 pm.
If you can fix this problem will be great as similar problem solved in v2.