COMPUTASHARE USA NIGHTMARE - AGAIN

This is now the second negative review I am writing with regards to this dreadful company. My initial review was responded to and the person on the other side made every effort to assist but has not gone AWOL. No communications. No responses to emails. NO NOTHING. I am now 18 months down the line trying to resolve my father's estate and Computashare is literally the only thing holding up the finalisation thereof. The gentleman who initially responded to my first complaint has gone radio silence and does not respond to anything at all. The executor has emailed him. I have emailed him. There is absolutely no response - not even an out of office notification, not a read receipt. NOTHING. To say this is frustrating is an understatement. Much is it possible that these people are still in business when their service is so bad?