UNACCEPTED SERVICE FROM NINETY-ONE

We are a law firm and we are the executors in a deceased estate. We have been trying for months to get Ninety-One to pay the proceeds of the deceased to the estate banking account. We are not receiving any communication from them. We are communicating with consultants at Investec who is communicating with Ninety-One as they do not reply to any of our e-mails. Yesterday we were advised that they tried calling our office to verify the bank details. We did not receive or miss any calls. I even sent my cellphone number to Investec and asked them to forward it to Ninety-One, so they can call to verify the bank details. We are still waiting on them to call. This is extremely bad service and they are holding up the finalising of the estate.