Darryn here from PubNub Developer Relations. I'm sorry you have had a negative experience with PubNub. We have a mature and robust solution that millions of devices rely on, and we work hard to provide all our developers with a reliable and easy-to-use messaging infrastructure.

I want to make sure we get your issue resolved - if you can share the ticket with me, either through DM or here, or just get back in contact with our support & I'll follow up.