SMS Text from SIM7600E-H not working

[cworoberts]

Newbie here. Bought a Freematics OnePlus arduino based device. I have loaded up the sim7600test sketch provided by the good folks at Freematics.com. Attempting to add SMS Text message to it. I'm using a Hologram SIM with SMS capability. The connection test to the HTTP server is reporting as OK, however when I send a SMS message I do not receive it on my phone. Anyone got this working?
The following is code from the sim7600test.ino file
(NOTE.. Had some formating issues with copy and past into this forum. The editing may have deleted a bracket somewhere. The code compiled just fine)

#include <lib/FreematicsPlus.h>
// testing URL: https://hub.freematics.com/test

#define SERVER_HOST "hub.freematics.com"
#define SERVER_PORT 443
#define SERVER_PATH "/test"
#define CELL_APN "hologram"
#define CONN_TIMEOUT 5000
FreematicsESP32 sys;

HTTPClientSIM7600 net;

int errors = 0;
bool init_net()

{
   Serial.print("Init cellular module...");
   if (net.begin(&sys)) {
    Serial.print(net.deviceName());
    Serial.println(" OK");
   } else {
     Serial.println("NO");
     return false;
    }
    Serial.print("IMEI:");
    Serial.println(net.IMEI);
    
      if (net.checkSIM()) {

     Serial.println("SIM Card OK");
    } else {
      Serial.println("No SIM Card");
    }
      Serial.print("Registering on network...");

    if (net.setup(CELL_APN)) {
     Serial.println("OK");
    } else {
      Serial.println("NO");
      return false;
    }
    String op = net.getOperatorName();

   if (op.length()) {
      Serial.print("Operator:");
      Serial.println(op);
    }
       Serial.print("Obtaining IP address...");

    String ip = net.getIP();
    if (ip) {
    Serial.println(ip);
    } else {
    Serial.println("N/A");
    }
     int signal = net.getSignal();

   if (signal) {
     Serial.print("RSSI:");
     Serial.print(signal);
     Serial.println("dBm");
    }
     Serial.print("Init HTTPS stack...");

   if (net.open()) {
     Serial.println("OK");
    } else {
    Serial.println("NO");
    }
    return true;
}
void setup()

{
  Serial.begin(115200);
  // use following for Freematics ONE+
  sys.begin();
  // use following for Freematics Esprit or other ESP32 dev board
  //sys.xbBegin(115200, 16, 17);

  // initialize cellular module

  while (!init_net());
}
void loop()

{
  if (errors > 10) {
    // re-initialize cellular module
    net.end();
    if (init_net()) {
      Serial.println("OK");
      errors = 0;
    } else {
      Serial.println("NO");
      delay(3000);
      return;
    }
  }
  //Lets test SMS 

{
  Serial.write("AT+CMGF=1\r");
  delay(500);
  /*Number to send SMS to*/
   Serial.print("AT+CMGS=\"+88612345678\"\r");
   delay(500);
   Serial.print("\rHELLO World!!\r\n");
   delay(500);
  Serial.write(0x1A);
  Serial.print("Sent!!");
  delay(1000); 
  Serial.println("Waiting 1 Minute...");
  delay(60000);
   }
}

My code excerpt from above that’s inside the void loop

  //Lets test SMS 

{
  Serial.write("AT+CMGF=1\r");
  delay(500);
  /*Number to send SMS to*/
   Serial.print("AT+CMGS=\"+88612345678\"\r");
   delay(500);
   Serial.print("\rHELLO World!!\r\n");
   delay(500);
  Serial.write(0x1A);
  Serial.print("Sent!!");
  delay(1000); 
  Serial.println("Waiting 1 Minute...");
  delay(60000);
   }

I'm guessing that I haven't setup the modum correctly, but just not sure.
Any help would be greatly appreciated.