DLC crew challenges reawards missing

i did 2 of the crew challenges for the moxxi heist DLC. the mayors killer looks ones in particular. i completed and claimed the rewards for the compacter and spendicon with FL4K and when i checked my quickchange vendor staion aboard sanctuary the rewards were not there. its kinda’ve a bummer to know that the crew challenge rewards don’t appear in my inventory. now i’m wary of claiming any other rewards. apperently the mission ‘Technical NOGout’ where i get the nog grenade also gives a face skin for my character and i never knew that. but people have been having issues with that too. does anyone have a fix for this. because now i won’t claim anything in mail that i want badly because i’m afraid i won’t get it. plz help