Unauthorized debit order daylight *******

I got a call arew months ago for a policy from above company, the guy I spoke to tried to convince me to take the cover but I was reluctant and he said/advice me that they will give me time up till end May to decide. I would be emailed the documents and if I agree I should send email the documents back(this was all done telephonic). This morning I woke up to Platinum life trying to debit my account for something I did not signed off or agreed (I agreed to receive the email and had to decide if I want policy to send it back which I did not in fact I can't access that email address my Huawei phone is no longer compatible to access app, and I can't remember my password been years since ce I created it). Please go and listen to the call and I did not in any way agreed to take this policy, they even tried last week to convince me to take a free gift and I refused. My account in minus who will pay for this bank charges I'm currently not working, show me where a signed he clearly said i should send email back if I read and agreed which I didn't.