"No dietary flexibility"

I have been awaiting a procedure for about a month which is a positive as I got the appointment so quickly. They sent me the pre-assessment pack to fill in, including a list to tick off my dietary requirements.

I ticked vegan as I have intolerances.

My procedure is in the evening and I have just been seen by the kitchen staff for my order for when I get back - She said they can’t offer me a salad as the kitchen’s shut and the only sandwich options have meat, fish cheese and eggs.

Not good. Luckily I brought my own food with me.

I just want to know why I was offered the option of providing my dietary requirements if I wasn’t going to get it anyway? Options should be made available to vegans.