Hi,
If she isn't eating get some kitten nutrical its a high calorie vitamin paste with taurine which you can give her and it will at least perk her up and and keep her healthier for now. It can be expensive as it's an American product but it works amazingly well. As you have to import it will take 10 working days to arrive.
https://www.amazon.co.uk/gp/aw/d/B002Y0 ... ref=plSrchThe other route is get down vetcal which comes from over here but doesn't have the added taurine but you can get it a lot faster, it will give her the added vitamins as well as calories, think of it like a drip but without the liquid so it actually works cheaper and easier to use this if she isn't dehydrated. If she is dehydrated rush her to the vets.
https://www.amazon.co.uk/gp/aw/d/B00GDF ... rds=vetcalIt's always a very useful product to have in anyway for emergencies.
If a cat is burying their food it's usually one of two things if the food isn't eaten at all cats bury their food because they don't like it much like they bury any other type of waste. If the food is mostly eaten then they are saving it for later and hiding it from competitors which is ALC behaviour. As you said she isn't eating I'll assume she's doing it for the first reason.
Bengals are very fussy eaters often and most prefer wet food over dry, a lot won't even eat dry food. So I would recommend getting her some wet food brands and trying them to see which she likes. I would recommend staying away from hills as it's a food that's fill of fillers (even though it's sold by a vet it's very poor quality the same with Royal Canin, both are sold by vets because they make a percentage from the pet food company for selling them. Also vets get little to no training in animal nutrition and what they do get is from big pet food brands which encourage them to push their products.) I would recommend trying some high protein foods and seeing which she will eat, I have my boy currently on Thrive complete kitten food (he has a very sensitive stomach)
https://www.amazon.co.uk/gp/aw/d/B00KOL ... SX200_QL40I have my girl on Applaws kitten food
https://fetch.co.uk/applaws-kitten-food ... -261954011 they also do sardine and chicken flavours
And they are both on Applaws dry available all day
https://fetch.co.uk/applaws-natural-com ... -202094011I would recommend looking for brands that have the highest protein amount 70% + initially unless she is super fussy and will only eat whiskas or Felix which does happen. You can get around feeding a poorer quality food by giving her the vitamin paste I mentioned above daily as that helps give any extra that she will need.
Also check the cans to see if they say complementary food or complete food, if they are complementary you will either need to feed a dry food as well or give her the vitamin supplements. You will find these days a lot of food isn't complete anymore because they want you to feed both wet and dry.
Your best bet is going down to pets at home and looking at the brands they have, picking up a few cans of the better quality and seeing what she will eat. Also still take her to the vet to see if she does have anything medically wrong but if the vet does try and sell you food from there I would avoid getting it unless you really want to as I said above vets don't have training in animal nutrition.