Other financial discussions

this is all good info but have you heard how we double check if it has been sent. my concern is that it says it was mailed out over 2 weeks ago. did it get lost? did my old change of address effect it? (irs page makes it sound like it wouldn't but the post office says it would...and this is just a concern because my address change was from awhile ago and i recieved the letter from trump saying hey you  qualify...but still no check...) how easy is it for say someone else to  use the debit card...i would just like to know)