I am using PayPal Rest API for recurring billing. As described in the API i have created a billing plan with a Setup fee $10 and future price $5 and create and execute a agreement. Now my question is, now user want to refund of his setup fee($10) and cancel his billing agreement. I can cancel his billing agreement because we have his agreement id but how can we refund his setup fee because we don't have the transaction id of this transaction. Please suggest us.
With Regards, Alok