I'm sorry to hear you are unable to make/receive calls or send/receive text messages. Don't worry, I'm here to help.
Are you still having these issues? How long have you experienced this? Where are you located? What happens when you try placing a call? Do you get an error message when attempting to send a text message?
Try rebooting the phone by removing the battery for a few seconds. If you are still unable to make/receive calls or send/receive text messages, please send me a private message and I will be more than happy to assist you. Please make sure to include your name and mobile number, as well as a number other than your cell phone where you can be reached.