I have funeral policies with Old Mutual, but I realised that for one there was a double debit of R366 for the premium, I then contacted them via email on the 26 February, again sent a follow-up email on the 5th, still my issue has not been resolved

I have funeral policies with Old Mutual, but I realised that for one there was a double debit of R366 for the premium, I then contacted them via email on the 26 February, again sent a follow-up email on the 5th, still my issue has not been resolved. My worry is, the money they took was supposed to cover for my other debit orders which have as a result not been provided for. This morning I sent yet another email with a my bank statement attached as proof of the double debit, the reference no is ***.