I noticed your comment on the Digital Extremes page. i have since deleted the comment already.
Not sure which admin told you that, but they probably meant to go the the official warframe website, not here. This wikia is operated by players and not Digital Extremes.
Here are some links to get you started.
Warframe Support use this to submit a missing items report for your missing item. Go to the top, click submit a request, click Equipment and inventory, and then fill in the rest of the information. Be sure to select the missing equipment or inventory category. If English is not your first language, simply select your preferred language at the top right of the page.
The Tenno Assistance forum is also great to get help directly from other players.