NO response to complain I made 2 weeks ago

On the 1st December I sent a complaint via e-mail, I got a generic reply, and then nothing at all. I followed up and got no reply. I then posted on their facebook page, and got surprise, surprise, another generic reply. Then nothing. I followed up again! And got a phone call saying the manager at Canal Walk assumed the matter had been closed!!!! And that they would get back to me... 4 days later still nothing. My complaint has not been dealt with in anyway, and I am about to lose it with yet another generic reply. The service we received at the Cafe is shocking, the way their staff were treated by the manager in front of customers I am sure is *******. I am so disgusted!