I have 4 lines on 5G Play More and want to move 1 line to a new My Plan. I now recieve $40 discount for auto pay and $40 discount for Moble & Home this is for all 4 lines. Plus I have a $19.99 device credit each month for new iphone, this is for the device i want to move. If i make the change will i still recieve all discounts and device credit?