Block Storage Ordering issue

[gkrash]

For some reason ordering block storage isn't consistent..

From FRA02,

If I order 100 GB Performance @ 1000 IOPS, it works fine.

Using the same code (different resource name), if I order 4000 GB Performance @ 8000 IOPS it fails with:
Error while creating storage:No product items matching with keyName 8000_IOPS and categoryCode performance_storage_iops could be found

I can successfully order this storage by hand through the console, so I know the parameters work.. can post my TF samples if needed, but they are essentially identical otherwise.

Thoughts?