Cancellation of Medical Aid - cannot get through landline- no Email address this sucks!

I have been trying to email, phone, whatsapp them for over three days now from Malta to cancel my medical aid. I even phoned my mom in South Africa and asked her to try she cannot get through on the cancellation number and we have to give them a calendar months notice which was yesterday. I did not go through a broker as I joined them directly. I really cannot believe that their lines are not been answered. I have life policies as well that I am now considering cancelling as well. This is awful service and don't try finding any email address it just bounces back. I have now added my mom's cell number because I cannot add an international number on this review