Worst service ever-more than 2 weeks still no feedback and no refund done.

I am not happy with the service I have received from 1life client care specifically from Christiaan, I didn't get his surname , initially when I first made an encounter with him my query was very simple and this was 2 weeks ago. Long story short 1life debited two premiums instead of one that we initially agreed on after I have reinstated my policy with the retention advisor. I remember very clear that I wanted my policy to start from the 1st of Sep 2022, and he said they can only commence on the 30th of Aug 2022, of which I agreed, He confirmed that your premium will be collected to on the said that and cover is in advance meaning that am covered from the 30th Aug 2022 to the 30th Sept 2022. Come collection date premium was collected as expected on the 30th , on the 1st of Sept 2022 another premium was collected and I wasn't happy at all. I called to enquire about the second debit order and refund , I got a shock of my life dealing with Christiaan who kept me on hold numerous times ,I spent almost 30mins for a simple query I need my refund as I didn't consent to for the second debit order. I gave him an opportunity to even go and listen to the recordings , we are entering into the 3rd week now still no refund and still no feedback. Please refund me asap. I am going to spread this to my social media platforms. I don't like it when service providers such as 1life take their customers for granted. Please fix this asap.