So, I'm new, so forgive me if this is a dull question I'm on the rolling 3 month deal, and have already got a lovely looking and sounding copy of Clipse, that I can only play when the kids are asleep ... This month, the Essentials doesn't really appeal, so I've swapped my main track to Hip-hop as I like me some MF DOOM, but now I've gone and listened to the Darrell Banks album and it's superb. If I purchase it as an 'add-on', is this a one time only thing? does it repeat bill? or do I get charged $23 extra for one month (so essentially I'm buying another record this month) Ta!