I have problem in sending messages from my Htc Butterfly 3

[Android Central Question]

There are two problems. The first one is that when I save a contact number with country code like +92, then the message will not send to that contact number, this is not an issue as I replaced the +92 with '0'. But now the other issue is that when there is a received message in the thread I am not able to send a message to that person until I delete his message. How to solve this problem.