Delhivery — Payment has been done in advance but still asking for for payment

Hello there, the order no with LR[protected] has been placed from Howrah, West Bengal to Mangalore, Karnataka. The issue is that delivery charges has been already paid in advance from Howrah itself but I was asked to pay again after the item has been reached to me. So one of your employee took back the item along with him as the payment has not being processed. Please resolve this issue