Alliance call centre ****MERS!!!!

Alliance called me and told me my vodacom account is in arrears,at which stage I asked them to provide proof of this. I have not received anything back in one week. Now they are sending my relatives whatsapp's claiming that they owe them money on my number. They even openly gave my banking details to my relative claiming its hers. So I've now called the number of keamogetswe (0879808780) but there is no answer. I have also called vodacom legal department in connection with this and they say I AM UP TO DATE!!!! They actually owe me money.