Payment made in a account that I didn't give

I had ***** in my funeral policy at assupol.... I was told to submit a complaint form and my bank statement and I did... I was then told that the complaint was resolved and that I will get my premiums refunded... On Monday I received an email from Bronte Samantha Williams regarding proof of payment.... Upon checking the proof of payment I saw that the details of the bank account are not mine.... I tried several times to contact assupol via email but I'm not getting a response.... I don't understand why this happened because I sent my bank statement but still the payment was made in a wrong account.