Sitecore 9 upgrade development license


We are starting a Sitecore 7.2 - 9 upgrade project and our existing Sitecore developer license file will not work with the Sitecore Installation Framework.

I have confirmed that the issue is with our license by successfully completing installation with a trial license which has now expired.

We have not finalised the commercials around our new licensing arrangements for Sitecore 9 yet but the development team would like to start testing the migration path. Is it possible to get a temporary developers license for this purpose given we are already licensed for Sitecore 7.2?