What is the  start date of the Shop Insurance policy? 

The policy will be issued one day after you’ve subscribed to it or made the payment for it. However, there is a 15 day waiting period for the coverage to begin.

For example, if you buy the policy on 1st August, the policy start date will be 2nd August, but the policy coverage will start from the 17th of August. That is, 15 days after the policy start date.