Check in the app.
UA cardholders Get bonus for completing various tasks, I got: sign up for emails get 500 miles &
Earn 150 bonus miles
Spend at least $1,100 on purchases and earn 150 bonus miles.
OR
Earn 300 bonus miles
Spend at least $1,150 on purchases and earn 300 bonus miles.
OR
Earn 600 bonus miles
Spend at least $1,250 on purchases and earn 600 bonus miles.