Poor customer service

I got a contract from MTN and called for my sim to be activated. first day they said it will be activated in 24 hours. After 24 hours it was not activated. I called yesterday and I was told that my sim was not rica registered and the delivery company will be called to register it and in 24 hours my sim card will be active. Still after over 48 hours my sim is not activated. Today I cannot even get through and finally when I do the person that answered hanged up. I am not impressed with MTN, as a new contract customer I thought this was going to be an awesome experience however it is not.