As everyone is now looking for Whatsapp alternatives, and the top priority is Telegram and Signal. Yesterday, Elon Musk tweeted and said that use Signal, after that there was a huge new sign-up on the Signal app. Due to which the verification code gets delayed across several providers.
On the same day, the officials tweeted and said that we are trying with our carrier to solve the issue as soon as possible. This app is a trusted privacy-focused open source messaging app, which is widely used by most of the influentials across the globe.