Delhivery — Package showing delivered but isn't

My AWB is [protected]. Initially, package was showing OUT FOR DELIVERY for 2 days continuously but couldn't delivered. Reason was showing that person not available at home. When I complained it suddenly showed that package delivered at 08:15 PM on 5th Feb. But it was never delivered. Since than I have raised query thrice but got mail only from Delhivery people mentioning that they will come back on the query. Still in portal it is showing that package is delivered. Nobody bothered to call. When I tried calling customer care, I get response that ticket is raised & working is going on.