1 wrong can ruin 10 good!

I am actually sadden to complain about Telkom mobile! i used to have only good service... after this weekend and today!<br> For the past few days Telkom sent me sms's and emails to go and upgrade. (LTE line) when i got to the branch the lady behind the desk told me that i cant upgrade... ( I apparently signed a 36 month contract) I spoke with the Telkom call centre today (22 Feb 2016). the lady told me that i pleas need to return to the store and upgrade my line.<br> After going back Again to the same store the lady told me that the Call center doesn't know what they talking about! the system is wrong... I cant upgrade my line! I then asked the lady to migrate my package to a 20GB 20GB line (im now on a 10GB 10 GB). She then told me they are going to charge me R1200 for taking a better package! I refused and the lady called Telkom (The people who didn't know what they where talking about) So they offered me a new line again for 36 months , no new device!?!? That makes no sense!!! So they want to cancel my line, give me a new line for 36months and give me no new device!?!?!? Really Telkom?!?!? <br> Pleas can someone that knows what they doing contact me!<br> Pleas explain to me why!?!?!?!<br>