Friend requests are ignored

I have mobile auth enabled - no trade holds if you have it enabled too!

My trade offers link: https://steamcommunity.com/tradeoffer/new/?partner=336422145&token=gI6UCjJ1
Owner's Steam profile: https://steamcommunity.com/id/zbeky
Owner's Backpack.tf profile: http://backpack.tf/u/76561198016282712

Have a nice day!