POOR CUSTOMER SERVICES

Good day

my mother passed away two months ago and i called edcon customer services and they gave me an email address, i have send my mothers death certificate twice already and im still getting bills, how on earth does this happen, today i called again the lady told me they did not receive nothing, i emailed my mothers death certificate for the third time, i mean really, the first time i emailed i received a reply, how do you not update your systems, so please if you want your money go collect it at her grave side