Worst laboratory

I have been having ongoing billing queries with lancet and everytime I call the call center nobody can help. They sent me a bill 1 year later after being admitted in hospital, I have gap cover which covers those bills if claimed within 6 months and the 1st bill I received was 1 year later and it's not a small amount. I have called the call center they 1st **** and said that they have been emailing, calling and messaging me,when I said send me proof nobody could, then I said no problem i can pull a detailed record of all my emails ,sms and calls, then 1 lady was honest enough to say she could see on the system nobody had made contact with me. I have been promised a call from several different managers from last year and nobody has called me yet. Honestly the worst laboratory by far and will definitely not use them again. Please guys be careful with lancet the submit claims on the wrong patients name and medical aid end up declining the claim not because it's not cover but because lancet is ***********.