Can't log in to Shift

Just bought the Handsome Collection on ps4 but i can’t log in to shift. Had no problem logging in to shift on my ps3. It is a different PSN/email account tho, how can i fix this?

Log in at https://shift.gearboxsoftware.com/home, and link your new PSN to your existing shift account. You may need to unlink your old PSN count first though.

logged in now, problem solved without me doing anything. oh well hope it doesnt turn up again later