Lost package after fedex delivered it. what can I do

I don’t have that many packages lost, but this one made me very uncomfortable.

ordered a home depot hood from hd.com and couldn’t get item (no inventory) after 1.5 months wait. ups shipping label generated but no shipping. Called in to cancel and was told it’s gonna be a return and full refund

2nd replacement order placed and Fedex delivered it, and package was lost not long after the delivery.

Reported to home depot and home depot refused to refund, coz it’s a gift card order and it can do shameless denial.

Asked me to file a case with fedex. i did, but claim status wasn’t moving.

home depot even sent me to retail equation claiming this is fraudulent refund request.

It’s been my 1st mail theft in years , definitely 1st one in this year.

what can i do? any suggestions?