When demand is through the roof, you may receive a notification that Blitz pricing is in effect. Blitz pricing results in an extra percentage being paid in addition to your regular delivery payout, and the extra percentage offered varies according to demand. The higher the demand, the higher the Blitz!
When you receive a delivery offer, it will also indicate if Blitz pricing is being offered with that specific delivery.
You can decide to opt in or out of these notifications, but it's generally in your best interest to receive alerts. Simply navigate to ‘Account’ in the app, and toggle ‘Blitz Notifications’ on or off.