Load old data

Hi all,
Unfortunately, I have manually load my consumption data from my utility. I noticed that I can only go back 90 days, as a paying user is there a way to load older data?
Also, is there any way to load more than one day at a time?

The limit is 90 days, there are no plans to increase this.

The live 5-minute data can only be loaded one day at a time manually. Its possible to load multiple days with Add Batch Status API but would require some scripting.