Razr texting problems.

[apl3]

Hopefully the experts here can help. I am working in Indonesia. I purchased a local sim card. I can make phone calls and receive text messages. When i try to reply to them right below the message i sent is a red exclamaion mark saying there is a problem. What that means is a mystery. I have data turned on so that is not a problem. Anyone have any experience using a sim card that is not a verizon one to send texts? Because I cant send one.