I've been a loyal user of this app for probably over 10 years or close to it. They usually fix issues but sometimes the issues will last months. I have notified them about issues and they always say it's fixed or blame it on my internet connection. It always tells me "message not delivered" for months now and the customer service team keeps telling me "it's resolved" and saying the same under reviews when rly its not fixed. Made me miss business calls and lose money.