Poor service from AON / SANTAM

Poor Service from AON and Santam insurance as the underwriter. My father's car is sitting at the panel beaters ,incurring storage costs and a bill of approximately R32000 for repairs. We lodged a claim around the end of March 2021, Santam as the underwriter agreed to settle the claim and instructed my father to take the car to the panel beaters. We changed the banking details around the beginning of April ,they didn't debit the account. On the day the car was sent to the panel beaters the AON agent ( Audry Mmako) told me that the insurance is canceled due to unpaid premiums. I requested that they cancel the claim and re instate the insurance from scratch, which she refused. She promised to sort the whole thing out. For the past two weeks she is ignoring my calls and e- mails. On her last communication she said she will request recordings, which I agreed to, as I write this review I haven't heard anything form.her, AON or Santam. It feels like they ******* my father into giving the car to the panel beaters. MY father is 71 years old and a pensioner. Where will he get R32000 to pay the panel beaters?