You have my condolences regarding your mom's passing; I do apologise for how the home has made you feel.
I emailed you (18.08.22) to say that we take complaints extremely seriously, and we are looking into your alleged complaint. Once we have completed the home's internal investigation, we will speak with you directly on this matter or arrange a meeting to go through our findings. If you need to discuss this further, please contact Head office and ask for me.