Standard bank funeral under written by Liberty Group South Africa

I changed my banking details in May and I have been calling and emailing them in order to update on their system and debit from the new one but to no avail. My emails go unanswered and when I call, I am told to hold for someone who will assist me and that person never comes. They have been diligent in sending me sms'es that remind me that should I miss 6 payments the policy will be cancelled. Never have those sms'es been followed up by an actual call. Which I think is just their sloppy way of covering their backs and say they did make contact with me.