No feedback on complaint despite numerous calls

On the 4th of May 2014 my husband was rushed to casualties in the middle of the night after having a terrible reaction to a Colgate toothpaste. The same tube of toothpaste also burnt the inside of my mouth so there was definitely something amiss with the specific tube. My concerns were verbally communicated to Cornelia Stienen on the 16th of May 2014 and she arranged for the product to be collected to be tested. In the past year I have made numerous phone calls to Cornelia and have sent a number of emails and she is unable to give me any answers and says that she will look into it and never returns my calls. I understand that testing may take some time but it has now been close to 14 months and I really think that this could have been resolved a long time ago. The reaction my husband had was severe and I feel that this has not been taken seriously.