Having read several posts, there was an indication that the $9.99 was a fixed price, but apparently not. Just looked at the order form:
"Renewal
The price is valid for a full 12 months. After that, we'll renew your contract automatically, at the then-current price of the offering, unless you cancel. The price is subject to change, but we will always notify you beforehand.
"
"Renewal
The price is valid for a full 12 months. After that, we'll renew your contract automatically, at the then-current price of the offering, unless you cancel. The price is subject to change, but we will always notify you beforehand.
"