Disregard for client's complaint on contaminated food

I sent the following text to the email provided for this specific outlet. I sent this on the 3rd of October 2019. After receiving no response, I sent the same complaint to their HQ. I have yet to hear back. I am persisting with this because, on the day, because of the obvious contamination, both the Executive and I had to cancel very important engagements for the rest of that day. THE DISREGARD FROM TASHAS IS DISGUSTING

This is the text:

I wanted to alert you to a problem.

I invited a director of Ernst and Young for a lunch meeting earlier today. We both ordered the smoked salmon, his as specified on the menu and mine without cottage cheese and ****tail tomatoes. Both of us had the Pear juice (without ******) and later Expressos. By the time I reached my office, I was rushing to the bathroom as I had instant diarrhea. I called my colleague a minute ago who confirmed that he was suffering exactly the same symptoms. Note that I had a lunch meeting yesterday at Morningside and had the same without any issues.

This, as I know you would agree, is unacceptable given the standard that so many of us have grown accustomed to with Tashas. I would hope that your response is not one that is going to attempt to deflect nor defend this complaint. A satisfactory explanation would be appreciated"

https://www.tripadvisor.co.za/ShowUserReviews-g312586-d***1-r***-Tashas_Nicolway-Sandton_Greater_Johannesburg_Gauteng.html#