Exchange of new cell phone - Consumer Complaint for Vodacom - Head Office

Hi I lost my phone I contacted Vodacom insurance my claim was approved I was given a cell phone less then the value of my prev phone I was not happy when I received the phone and I just wanted to exchange the phone for something else the insurance said that was not the phone that I was surpose to receive but the store refuses to take the phone back I never used the phone and the store open the phones box it self I'm not happy with the phone I received it hasn't even been 7days yet and they refuse to take it back I never used the phone yet I'm so pissed cause I'm still paying insurance as well as my contract every month it's so unfair