I have paid for the upgrade of Gmail to 25GB because my account has reached the 10GB limit. However, it still shows 10GB limit and that I am out of space. In my google account is says I have the 25GB of data. What is going on here and how do I get gmail to 25GB once I have paid for the additional storage?
As noted on the Purchase Extra Storage help page:
This isn't immediately obvious if you upgrade just for GMail, since it is in the Account support section.