PREPAID water and electricity service fees

Maybe someone can assist me please? Ekhwesi municipality is asking me rediculous service fees for PREPAID electricity and PREPAID water. Within 3 months the service fees are above R3500, and no tax invoice or a service has been delivered to me. If I ask what is the service fee for, no one can give me an answer. So I pay double for water, as the service fee to buy water only monthly is R373.70 excluding the water which is another R400. Thus, my water costs me monthly R800. The electricity is the worst.... Service fees above R500 monthly for electricity