Edgars or their agents eliciting private information

For two days in a row, I received calls from Edgars (this morning again at 08:56 from Asanda). On both occasions the callers requested my date of birth. Since this is private information and can be used by ****mers, I refuse to give my private information out - especially since they called me. This morning, Asanda then said that Edgars is going to charge me for the call. Who does she think she is? If Edgards charge me one cent for the call, I shall take them to the National Consumer Tribunal.