Edgars / RCS - account dispute & poor communication

Incorrect billing on my account since RCS has taken over the Edgars accounts. 14 telephone calls - people at the call centre advises you to send an email. 8 emails - no response. Edgars / RCS are however diligent in sending threatening notices of arrears, although I've been paying my account every month. Wonder if Edgars / RCS management would be satisfied with this kind of service?