Frustrated and dissapointed.. Sim card still pending.

I took out two Cellphone contracts last week Wednesday at an MTN store, and it was approved the same day but only got my phones plus sim cards the following day. Upon inserting the sim cards, one sim worked and the other did not work. I than contacted activations early friday morning and they told me it takes 2-24 hours for the sim to be activated, which 09:37 on friday would be 24 hours, i was told to call around one if the issue was not resolved. Still at one the same day it was not solved, and i was told different stories by every Consultant i spoke to over the phone. I than called the store where i took out my contracts and was told that my sim was not rica registered and the registered my sim and was told to restart my phone, which i did but still no change and the Consultant told me to check again after 5 min, till today my sim card is still not working. I tried to check my rica status only and i found that it is pending, i do not understand why this is happening and why mtn can not help resolved this issue. I am sitting here frustrated, because i am sitting with a phone that i desparatly need to use but is not working. I spent do much money on a simple sim card that i can not even use.