Refund and Cancellation

A cancellation and refund policy outlines rules about how customers can return and exchange products/services they purchased.
1)How long after the delivery of the order can a customer request for cancellation or refund?
2)How long will it take to process the refund after cancellation / refund request?
3) If event canceled, Organization refund you but if any reason postponed registration charge not be refunded.
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