hey guys, i intend to get the DHD with SmartPlan from Digi, but im currently using a Maxis supplementary line. May i know what is the procedures of porting in my number to Digi ?

Do i have to bring the principal line owner to Maxis centre to do the port in then only to Digi centre ?

If the DHD is out of stock at the moment, do i need to port in first then only can reserve for it ?