The way you did it.. makes no sense..

I was on the 79.99 Plan wich Was 1200 Minutes at the time + all the other Niights and weekends, I payed that for 2 month.
w/ an average use of about 400 of those minutes for each month.
2 month = 2400 minutes I used 800 minutes. wich left me with about 1600 minutes.

I downgraded to the 49.99 plan w/ only 400 minutes plus n/w etc..,, The only reason I downgraded to the 49.99 plan was Because I bought A blackberry wich requires another service plan wich Is 44.99 a month extra, So I downgraded to the 49.99 Voice plan and Added the Blackberry bundles wich I think is 44.99

When I got my bills I saw the Rollover minutes are still there.. So I really dont see where this went wrong?
i think It worked out perfect...

All the minutes means, I wont go over, Wont Pay extra.. so it worked fine.

I would rather pay an extra 40 to 50 bucks extra before, Then go on a lower plan and go over and get rapped..