I couldn't remember much of Bitwala and what happened to them and Visa but from what I still had in mind it was something like Visa did not allowed anymore transactions with Bitwala. I was going to ask you what was the story (from what I think, I have read it on your blog too previously) but to make your life easier I have googled it :D
I hope that Bitwala will have a great comeback, for their good and for the entire crypto world!