WhatsApp support lines and bots only work if your bot or mechanical Turk (human) can respond practically immediately. I have been entangled for about a week with my internet service provider who proudly announced that they no longer use e-mail (it is supposedly very 1990s) for customer support.
Now, is is great that you no longer have to call a telephonic support line (especially if you are hearing impaired!) but as the image above shows, a human (or named bot) responded yesterday after six hours at which time I was having a haircut and unable to respond to it. It then went away and I am back where I was, suspecting only that Melissa (the virus) has taken an easy job on the WebAfrica support line.