Bad Service from ER consulting at Lenmed Hospital.

After many attempts from myself I am forced to write this complaint. I rushed my Mother to the emergency at Lenmed Hospital earlier in 2017 and had to pay cash as she was not on my medical AID. I have been receiving e-mails and calls from ER consulting ever since threatening me with blacklisting if I don't settle the amount owed to them. I made several calls and even 2 visits to ER consulting at Lenmed to clear this issue up and was told that they must get their money from Lenmed yet I am still getting these calls. I again phoned ER consulting today to finally try and resolve this myself, with no luck.