Please use this page to request the new version of IDA and/or decompiler, or a redownload of the current version*.
For that, specify the path to your ida.key file.
It can be found in the IDA installation directory (usually c:\program files\ida)
The email field can be left empty (the reply will be sent to the currently registered address).
* redownloads are only possible for licenses with active support period. Only the latest version can be downloaded.