Overcharged bill no response

Dear Mtn, unfortunately after being a loyal customer having 4 active contract lines for almost 6 years I am utterly dissatisfied. Don't know if it's total incompetence or a good reason to port all my lines as soon as I can. <br> So now for the reason of my problems,My name is Mr Zaid Varachia main number is ***.i recently done 2 upgrades on my lines : *** and ***, the first problem was the keywest branch mtn store salesman wasn't very geared up and I requested an upgrade with USE YOUR OWN DEVICE TOP UP R200 OPTION ON BOTH LINES, HE INSISTED IT'S DONE AND AS FAR AS I SEEN IN YOUR PAMPHLET DATA OF 300MB IS INCLUDED FREE ASWELL AS FREE SMS. (I IGNORED THE FACT THAT IT'S FREE AND INCLUDED AS I NEVER USE DATA OR SMS ON THESE LINES DUE TO THE FACT I HAVE AXXESS DATA ON ONE LINE AND MOSTLY USE WIFI ON THE OTHER) <br> IF YOU LOOK AT MY STATEMENTS SINCE UPGRADE I AM BEING CHARGED FOR BOTH RECURRING SMS BUNDLE AND 300MB SERVICE FEE!!!??? That's an extra R105 + Vat PER LINE!!!! <br> So last month I sat on the phone waiting for 45 minutes to speak to customer care only to be told to go bk to store and sort out, they logged in but I'm still paying extra, no response pls help