Sending wrong information

I logged a complain on Hallo Peter on the 10/02/2015 regarding the documents that is now all of a sudden missing from MIBFA. Money was forwarded to SARS for tax but it was never done due to incorrect dates, according to MIBFA, so I was told in December 2014. I called them back in February 2015 and I was told we never handed the forms in but I have proof that we handed it in (receipt). I have forwarded several e-mail since this bad news was given to me but no reply since the 10/02/2015. Today I received an e-mail with a new form on that I must fill in but in the e-mail it says that my mother in-law passed away on the 31/03/2008. She never passed away then, she passed away in 2012, so where did they get that information? Every time I call the call centre (those rude agents) and I ask their names they cut the calls, why is it that they don't want to Identify themselves, why are they hiding? I want to know what happened to the documents? Who was the last person that worked on the account when the money was returned by SARS? Fruad is taking place here, the money has been transfered to someone's account. The matter should be investage by the Public Protector. Those agents is getting away