Unacceptable delays on a late estate payout

A year later and Old Mutual Wealth has not settled a late estate yet. The process has been riddled with mistakes and inefficiency. To start, they did not cease making payments into my late father's bank account for a full year, even after receiving the death certificate. Now, I've been to SARS five times to try a sort out the string of failed tax directives. No one at OM is willing to give me the info that I need to sort out the tax issue, in spite of me being the executor.

Are Old Mutual intentionally delaying payout to retain liquidity?!? Even the Arbitration department has failed to respond with any assistance.

My next step is the Ombudsman.