Do you have your receipt? Maybe they will take them back. Usually, if strings are opened, stores won't take them back.
You can sell them here on Talk Bass.
You need medium scale strings. The trapeze bridge on your Rogue makes your bass need 32" strings. You are probably the millionth person to find this out the hard way.
The La Bella Hofner set is great on those Beatle basses. Worth the money if you are thinking flats.