This setting can be turned on (or off) from your Merchant Console by following the below steps, or by contacting us.
How to turn Validate Upon Redemption on:
Login to your Merchant Console
Select Stamp Cards from the red left-hand menu
Select the stamp card you wish to edit, by clicking the relevant tab under the page heading. If you only have one stamp card, you do not need to do this.
Select edit details
Toggle Validate Upon Redemption on (green) or off (grey)
Save & exit
Changes are applied immediately to the Stamp Me App, but you may need to exit and reopen it to refresh the screen.