Very bad service from Health squared

I have a claim with Lancet Laboratories that has not been paid for R2989.60 by health squared for my late husband who passed away in October 2020 at the Union hospital he was in the Icu department from the 25th of September and passed away the 16th of October.I received a statement on the 30th of January 2021 from Lancet for thr amount of R 2989 that is outstanding.I followed up and health squared said it was duplicate tests was done.I got a letter from the specialist physician doctor on the 25th of February 2021 that was treating him in hospital to state that it was not duplicate tests that was done by Lancet,she needed to do the tests and I send the letter and statement from Lancet throught to the health squared claims department, and was not paid.I have been following up ever since with the cliams department,customer care,aggility and rhe clo aswell and every time I just get a new reference number.The claim became a stale claim around April and I have been following up continuesly with so many people and has been given so many reference numbers,seems like no one can or know how to sort out the claim,I have heard so many times that a team leader will phone untill now, no one comes back to me.I have spend endless time and money on phone calls,it is now 9 months since my husband passed and it is still not resolved.Very bad service and very dissapointing. R 2989.60 is a lot of money to pay,I am a widower now,and I dont have my husbands income anymore,life is expensive.