Just Eat complaint: Food safety issue

I choked and was sick on sharp and hard plastic within a vegetable spring roll ordered from Just Eat. I have found it quite challenging to convince Just Eat that this is a serious safety issue that could have resulted in serious injury and should be some of their responsibility. They explained about food hygiene certificates and that it is the consumers responsibility to make a choice based on these. I based my choice on Just Eats reviews. I purchased food from them which they advertised as good but apparently it’s nothing to do with them. I received a very generic email from them stating that they are not responsible and I should contact the local authority and complain. As for any real customer service or refund…. not a chance. I made a mistake using Just Eat, thought it was such a great thing because they offer so much choice up until I nearly choked to death.