You pay a consultant to understand your problem and sometimes solve it. If you've hired them and they don't know your domain then you're going to need to give t

You pay a consultant to understand your problem and sometimes solve it. If you've hired them and they don't know your domain then you're going to need to give them time to learn. It's on you for hiring someone that didn't already know everything. Don't expect them to put in free time to understand whatever infrastructure and code you have in place.