Unfair treatment and lack of resolving complains raised

I had 2 policy with old mutual investment policy number ***4 and greenlight policy ***4. On the 3rd of April 2020 I wrote and email requesting to cancel my investment policy and the person who assisted was Imraan Jacobs the administrator. And I received email confirming the cancellation. So on the 4th of May I was just checking my portfolio on their website and realized that my greenlight policy was also cancelled and its state that it was inactive since the 24th of April 2020. Then I wrote email to complains at old mutual and raised my questions. And did get automated reply email that a consultant will call me in a days time that was on the 4th of may 2020 and I never received any call and did follow ups until the consultant called me on the 18th of may. At first she said to me my policy was cancelled on the 24th of April but I said to her I didn't cancel my greenlight policy I requested that my Investment policy be the one that is cancelled. And then she said maybe the person who did it might have made a mistake to cancel it. We had few exchanges of disagreements and then she changed her statement that it has lapsed. Then I ask her how can a policy lapse when you collected the money from my account on the 27th of march and April since it's our agreed date of collection..then she said she can only see the debit of March can't see for April so I must go to my bank and ask why did they debit my account. I told her how can I ask them such questions cause I know I have policy with old mutual and I know the reference number they used. Then she finally say she can help me reinstate the policy I then refuse the reinstatement of it before I get clarity why it was cancelled it 1st and what was the reason.. I do have the recording of the conversation. I then wrote another email attached the recording and the reply was they can't open the recording and a consultant will contact me to clarify this. The same consultant call and when she hears that it was me she drop the phone on me likely I do have the second recording with me.

Now old mutual don't want to give me clear explanation why my policy was cancelled or even if it has lapsed why it was not communicated to me..and still they are debiting my account..What if something has happened to me and my beneficiary were going to be send from pillar to post cause I wouldn't be there to ask this question on their behalf. And still today I'm still getting the same response by email that it lapsed on the 3rd of April. My question is how can my policy lapse on the 3rd of April while on the 27th of March they collected the monthly premium and on the 27th of April they collected it again. And now all they can say is to offer me reinstatement of the policy with any clarity on the questions are raised and how do I trust them that this thing won't happen in the future.