I found that it was all Indian IPs and blocked half of country at firewall level. All was well. I could go to sleep. But then suddenly someone messaged me and said why don't I let him use WhatsApp. Then 100 users started messaging me. Then 1000s. My Facebook was blowing up. I was now thinking I was under the most sophisticated attack ever on a personal level.
So instead of banning the entire country via firewall or a "fatal error" message I created this message and asked users to follow @browserling and tweet messages about it. TAIWAN NUMBER ONE! COMPETITORS NUMBER NINE!
It turns out users in India can't easily make online USD purchases with credit or debit cards as it requires a special bank permission.
I got to work and over last two weeks I built a "WhatsApp over Browserling for India in an old browser on a $20 Jio Phone".
While I was working on Indian version, the word spread to Cameroon and Nigeria where people also use cheap phones that can't run Whatsapp or other software, because government blocked access to Facebook, Twitter and other websites.