Bad customer service

I forgot my daughter's milk on the counter on the 27th of January at the Baby city carnival mall branch. On the 28th I called the store at 10:33 to notify them of what happened and was told that they will look into. At 12:17 I called again to ask about the feed back and was told that they are still investigating and they will get back at me that Sunday. Monday morning on the 29th at 9:55 I had to call again and find out what was happening as no one was giving me feedback. I had to make another call at 12:37 to find out what was happening and yet still no one had a solid answer. At 14:40 I called again and only to be told that they are busy with stock taking and only then they asking me what time was I at the shop so that they can check the camera's. On the 30th I at 9:15 I was at the shop to find out what is happening and yet again the feedback I'm given is that I should wait and that they are checking the camera's. The manager could not even come out to apologize for this incident.