Source?
Based on how the SBA phrased the language.
Anybody got approved for an increase?
I don't know of any funding yet, approvals yes.
On what is the increase amount based?
2X of 2019 sales (originally 50%)
Procedure is easy like the initial loan or much harder?
Depends on when you applied. If you applied early on when no docs were required, you will most likely be asked for them now. If you applied in the last few months when they were already requesting documentation, then you probably won't need to provide anything now.