Shinga Pet not responding

I have used Shinga Pet for Dog food online delivery and they have always been excellent. I placed an order on 28 April, paid via EFT. Yesterday 5 May and the day prior 4 May, I emailed them to just update me as to when my order will be delivered - no response. I go onto their website, call the number listed, it belongs to another company. The lady who answered gave me 2 cell phone numbers for the owners of Shinga, both unavailable. Im really concerned as I cannot afford to lose close to R400 on a non delivery of items