Flipkart — order got cancelled, but refund has not processed

Today while placing an order, i selected the wrong product color by mistake. However the order got placed so i cancelled the order but i haven't received the refund. I paid through phonepe so i should have received an instant refund. So i called flipkart they informed me that the seller has not processed the refund yet, it is on hold. They have no idea why the seller has not processed the refund yet. I called them several times but not getting any resolution from them, they are neither contacting the seller nor giving me any information.

Order got cancelled but they kept the refund on hold.

Od id ending with 056000