What’s the recipient using, and did they previously use something else? If they switched from iPhone to not-iPhone, there’s a bug with Apple’s iMessage that could prevent them from receiving texts. https://support.apple.com/en-gb/HT204270
What’s the recipient using, and did they previously use something else? If they switched from iPhone to not-iPhone, there’s a bug with Apple’s iMessage that could prevent them from receiving texts. https://support.apple.com/en-gb/HT204270