Using an online form, Delta makes requesting mileage credit ... remember that Delta doesn't give you as much time to claim miles as other airlines. As a result, you'll want to request your missing ...

How do I file a claim against DELTA? 𝗩𝗶𝘀𝗶𝘁 𝘁𝗵𝗲 DELTA 𝘄𝗲𝗯𝘀𝗶𝘁𝗲 𝗮𝗻𝗱 𝗹𝗼𝗴 𝗶𝗻𝘁𝗼 𝘆𝗼𝘂𝗿 𝗮𝗰𝗰𝗼𝘂𝗻𝘁 ...

To claim these bonus miles, passengers are directed to the Delta Air Lines website, where a form is available that asks passengers for details including personal identification information ...