Hi guys, I just came back from an Asda store where I tried to refund some asda brand pizzas. They refused me on the grounds that "they don't take chilled products as they have to be chucked away", which contrasts as to what they say on the package. What can I do?

I don't know if im posting this in right place, But I hope some one can offer me some advice. My children have dairy allergies, so I order a lot of there special dairy free food online. I have used a particular company a few times with no problems. This time I decided to try ordering some chilled foods, such as dairy free cheese, dairy free spread, soya and coconut yoghurts and etc. They were sent by courier and were delivered next day. when package arrived the box was soaking wet and dripping. The delivery driver had had to wrap a bag around parcel. I opened the box in front of the delivery driver and he looked in box with me. The box was like a ordinary cardboard box lined with some clear plastic and there were some gel packs. The gel packs were clearly defrosted and warm and food was warm. Understandably the delivery driver did not want to take a dripping wet package with him. So I agreed to keep it at my house but insisted on the delivery driver making a note that package was damaged and defrosted warm. I also took some photos whilst he was there. Before signing. I contacted company who I had ordered food from and they apologized and agreed to send another lot out and told me to bin this lot of food. Well today second lot of food came and it was even worse. Parcel was dripping, same style box. Opened in front of driver again and again gel packs were warm and defrosted, 2 gel packs had exploded and every thing was covered in gel. Wrappers falling of food as so wet, yoghurt pot had big dent in it and all food was warm. It seems to me that the packaging they are using clearly is not suitable for sending chilled food, It is as far as I can tell not insulated etc. Are there legal requirements for sending chilled food. Do companies have to use specific packaging or not. I could not see a make on the box but the gel packs that they used say soft box temperature control packaging. I have looked this up on Google and been on soft box website and and they only state that there systems are for sending medical and pharmaceutical supplies not food. I am going to contact company again to complain, but wondered if I should take it further this time. Should I contact health and safety or some thing or just leave it. I'm just concerned that they could give some one food poisoning with this. any advice much appreciated thanks in advance