You are fine. If someone else came in today to buy that tier, they would have to pay $125. The strike through is showing what the "upgrade" cost would be, but it doesn't really apply when you're looking at the new package that is equivalent to your old one.

If you look at any of the more expensive packages, you will see that same strikethrough and updated price, which indicates what it would cost you to upgrade (you get full credit for money already paid).