Sanlam's very bad service

I visited the Sanlam offices in Johannesburg in February 2020 wrt a policy that i inquired about that i took out a couple of years ago and have not received the benefits thereof. After i have spoke to the consultant at the office she rep**** with an email that the policy was cashed out and gave an amount and the bank details the money was paid to. I did not recognize the banking details they supp**** and visited the Absa branch and according to them the account does not belong to me or my husband nor does this account number exist. I have sent numerous emails to the consultant requesting an explanation and they must give me proof that the funds was indeed paid to me but ever since February and all my emails no response what so ever .