Used app to make payment. Double charged but retailer insist they received only once. Wrote to Grab repeatedly but they only confirmed the double payment but insist I return to retailer. After 3 rounds of informing Grab retailer ask for direct contact through Grab accounts, I am again asked to request refund from retailer. Looping/ bouncing ? Pertaining below reply asking me to contact Help centre again. I have contacted help and again told to contact retailer, request cancelled after. PM me?