signing up for rom code

[gun smoke]

Do I have to buy both or just one of these programs from ROM CODE
RomCode CAM Credit for $19.99 &
RomCode 6 Month Subscription $49.99
Thank's
Here's the list.
RomCode CAM Credit $19.99
RomCode 3 Month Subscription $39.99
RomCode 6 Month Subscription $49.99
RomCode 1 Year Subscription $99.99
O.E.M. Original Cyclone Unlocker With 4619 CSE $119.99
RomCode Lifetime Subscription $149.99