Where is my delivery??

I've been using Pet Heaven for around 6 months and had great experiences. But this time I placed an order on 1st March, apparently it was collected by the courier (CourierIT) on 4th March, but as of 11th March I've not received any indication of a delivery. My dogs have run out of pet food and I've been giving them supermarket brands as a stop gap, but now they are both vomiting up their food. This really is ridiculous. Please be careful to make sure you order well in advance for your orders so that you don't end up in the same situation!