No response to claim in a month

When travelling to Mauritius in December, SAA left my Vanity Bag behind. They told me at the counter I can spend $100 in the meantime to buy toothbrushes, sunblock ect, which does not go very far and SAA will refund me. My vanity bag arrived the next evening and I spent $75 getting the basics. I sent through the claim and receipts required and got acknowledgement of email from SAA on the 11th January. They said in their email \we will endeavor to respond within our 21 day service standard\", which is totally appalling, its now been 32 days. I tried calling their service number, no answer just a repeat of their message over and over again. Just do what you say you're going to do!!!"