vodacom open a noumber on my account that i did not even know off

Vodacom open no ********** 08 on my account no i ********** and they must pay me back the amount of R3048,78. I phone all the vodacom shop. They can not help me. The teamleader at canselation do not want to talk to custermers. I phone Domenic at ********** 173 but she premis me that she will help me. You can phone me at ********** 334