Computershares horrible service, and withholding information on Shares.

My departed father had shares with Computershare. I've been attempting to sell them for more than a month. I've spoken to numerous agents, sent in so much documentation i can barely keep track, and yet I still can't seem to get someone to help me?

I'm left to listen to terrible call center music, while im transferred from department to department and no one can help me. The agent handling my case seems to have inexplicably disappeared. I'm no closer to handling what should have been a painless process.

I have no choice but to send a letter of complaint to the better business bureau of South Africa, perhaps Computershare needs a overhaul, because i fear my shares are lost forever. should I hire a lawyer? will that get me access to my shares?