MTN SUCKS

I AM SO TIRED OF MTN *****ING MY AIRTIME WHEN I LOAD. FOR LAST 3 TIMES I HAVE LOADED R40 TO CONVERT TO DATA AND EVERYTIME R20 IS GONE. I HAVE CONTRACT WITH YOU FOR THE LAST 19 YEARS AND THIS IS THE SERVICES I GET. I HAVE SEND AN EMAIL AND NOBODY HAS COME BACK TO ME. I WILL BE TAKING THIS FURTHER NOW. I AM TIRED. I THINK I SHOULD JUST STOP PAYING MY ACCOUNT AND LET YOU GIVE ME OVER AND GO TO ANOTHER NETWORK WERE I CAN GET SERVICE. YOU SUCK. I WANT ALL MY MONEY BACK