What that's bloody awful!
We've stayed in a few different premier inns(visiting DH's family for a few days,going to watch a football match)and the continental part of the breakfast is always huge.
Croissants,pain au chocolat,pain au raisins,cinnamon and raisin bagel,blueberry mini muffins,sourdough crumpets,bread(white,malted or gluten free)American style buttermilk pancakes,8 different spreads for toast,fresh fruit salad,apples and bananas,red berry mix,dried fruit mix,organic yogurts,Greek yogurt,kellogs cereal and muesli,granola,weetabix,porridge and that's just the food.
That is all unlimited as well so you can eat as much as you want,the drinks are also unlimited and you have a choice of costa coffees,different types of tea,different types of juice and smoothies.
That's only £7.50 per adult and any child under 16 eats for free when dining with an adult that's having breakfast.
I would complain OP,I'm sure what they gave you can't be right!