Poor customer service ever

I recently had issues with Vodacom contract, they promised to help me,not knowing that they will ***** me again,they then apologized,I forgave them,now I took another phone contract with them but they sent wrong phone,when I call them they keep on escalating the matter,now I can't use the phone but I'm paying, someone warned me not to take Vodacom contract online,but I ignored the person,now I regret,I will no longer take Vodacom online contracts,this is my last Voda contract online