Upgrade from supporter to supporter plus?

[betamax]

Hi,

Here's my subscription details:

Supporter Program - $29.00 22-03-2008 22-03-2009

If I pay $100 and get the supporter plus subscription, will I get any refund or will I lose my original supporter subscription?

How does it work?

[padfoot]

No refund, since it is an upgrade.

The supporter plus subscription would cost $129 for anyone else who is buying it 'straight up' without upgrading...
The upgrade lasts until your original subscription end date (22-03-2009 for you) at which time you can renew with 'supporter' for $29, or 'supporter plus' for $129, or nothing for free