Old Mutual - Disappointing service

My client passed away on the 24 November 2021. She had Old Mutual Unit Trusts which we sold at the end of September 2022. We requested provisional IT3B and IT3c certificates for the period 1 March 2022 to date of closure of the unit trusts. This was requested telephonically and via email and 5 weeks later we still do not have the information. The call center is not prepared to help and I have messages for Jude Pillay to phone me. So far, Jude Pillay has not phoned.

These certificates are required urgently and the service from Old Mutual is non-existent.

Please can someone help.