Worst customer care service

When I got invited to join SAA Voyager I was treated so well customer care was excellent, now that I am a member, SAA Voyager doesn't even bother to repond to my quieries. I can no longer access my account, I have been begging for assistance for over 6 months , no one bothers to reply. I am on a verge of Joining Ethiopian airways. No wonder SAA is deteriorating , it is because of this bad departments who do not do their duties, how does a customer begs for assistance for over 6 months, to log in to their accounts. I am still on blue and have miles to put me to Gold but SAA Voyager cares less in sorting out my issue.