Can't get async and await working

Question

Logic says: User 1 sends a message to User 2 via Server 1. Server 1 records it in DB (mysql) and sends the message to Server 2 to be sent to User 2. Server 1 responds to User 1 that message has been sent. While at the back-end (asynchonously) Server 1 keeps requesting Server 2 for the delivery of the message, when delivered, updates the database and set delivery status as delivered or failed (after few hours of re-trying).

But I don't think this code is working. Because database never gets updated.

SendMessage.aspx

protected void btnSend_Click(object sender, EventArgs e)
{
    global g = new global();
    g.CallUpdateSMSStatus(cmdSMS.LastInsertedId.ToString(), msgID);
}

 

global.cs

public async void CallUpdateSMSStatus(string strMsgID, string strMsgID)
    {
        await updateMessageStatus(strMsgID, strMsgIDServer);
    }

    public async Task updateMessageStatus(string strMsgID, string strMsgID)
    {
        global g = new global();
        int timer = 10000;
        int intStatus = 2;
        // 2 - means Message Sent - Any other number finishes delivery request
        while (intStatus == 2)
        {
            await Task.Run(() =>
            {
                intStatus = g.checkSMSStatus(strMsgIDServer);
                //checkSMSStatus REQUEST SERVER 2 for status of message
                if (intStatus != 2)
                {
                    //Update Status in the Database
                }
                else
                {
                    if (timer < 3600000)
                    {
                        timer *= 10;
                    }
                    Thread.Sleep(timer);

                }
            });
        }
    }