There are many different types of animation styles. Some are simple and crude and some are very refined. Refined work takes hours, it’s not a magic button. If someone is able to provide you a fixed budget price for something without asking you a single question, you seriously don’t want that service. You can not possibly have a bespoke production without a discussion to form a style and a game plan that works for your brand and image. It is important that the people producing your brand video understand your character. A conversation and some advice over a coffee is an easy cheap way to cut through some of the layers and find yourself.
One thing to consider - good animation is time consuming and labour intensive, so you tend to talk in thousands rather than hundreds. The question is how many thousands? Is it a couple, or is it a major project. A coffee with an experienced producer can clear that up!