They call all the time trying to get you to get credit card, robo calls are called WAR DIALING
You should also report them to the DO not call list
I know a lot of people dont beleive DO NOT call list works< but recently i got a call from DIST atty about a complaint I filed several years ago against dish network, they want me to testify againts them
REport this on the DO Not call list it works < it some times takes a while
aalso ask your phone company if they can block this number from calling you its usually free