Billed twice a month

Hi there, I have noticed that from Oct 2024 I am being billed twice a month for Amazon. Instead of paying R79.00 once a month. I am being billed R79 on 8th of the month, then again another R79 on 13th of the month. I cannot find a phone number or anyway to contact anyone from Amazon Prime Video in South Africa. Can someone please make contact with me?