Good for nothing - cannot resolve issues - Going to cancel contract

<p><font size="3" color="#000000" face="Times New Roman"> I called 808 on 6 May at 11h55 to find out about the 30GB additional data with my contract (Ref No.: ***). Call on 10 May at 13h30 (Ref No.:***). Call on 11 May at 14h00 (Ref No.:***). Called 12 May at 12h40 (Ref No.:***). Called on 12 May at 13h00 (Ref No.:***). I was promised a call back with the matter resolved but still nothing. I cannot belive after so many promises by MTN and call from me to the call center this matter is still not resolved. What poor service.</font></p> <p><font size="3" color="#000000" face="Times New Roman">This is a new contract and now I am going to cancel this contract with MTN. It is a My Choice 2GB contract with the Samsnung Galaxy Tab S2.</font></p> <p><font size="3" color="#000000" face="Times New Roman">Very disappointing.</font></p>