yes, they were very slow to respond before the application but very responsive once the documents were submitted. That’s why I went ahead and applied even though I did not have exactly what they were asking for.
If you have a document clearly stating this future income from a reliable source and money in bank or stocks, etc. I would try to submit it.
I didn’t have the required documentation and submitted an executive summary of the situation along with pertinent documentation. They asked for my tax returns… which I don’t have to claim (weird situation)so I gave them my last return from 2018 and they gave me the visa. The agent commended me on putting together a clear picture of the situation.