******** Debit Order On Account-AssetLife/Zestlife

I received an email stating I have signed up for Life Insurance with ZestLife Insurance. I had no contact with either institutions or are clients of both. Today my account was ********ly debited. I have never consented to a policy not have i given permission for my account to be debited. The policy details are The Standard Bank Of South Africa Ltd Assetlife ***. I want proof that I signed up for this policy as I am aware that telephonic calls are recorded and want my money refunded.