Bad Service

I have signed and received a contract cell phone with iSmart mobile on the 15th December 2015, my sim card was said to have been activated on the 18th December 2015. The agreement was for me to receive R100 airtime and 200mb of data but up to today I have not received any of those. I have tried to lodge a complaint by calling their call centre but there is no difference even up to today. They have already debited my account during December 2015 and they are going to do so during this month too without resolving thae issue, its so frustrating to be told to be patient every time you call, for two month now my query has not been resolved. iSmart has very bad service with its *********** call centre agents. please help me receive my airtime and data allocation.