Read the official program page and FAQ directly and compare them with what the consultancy has said in writing. Any difference between the two is information about the adviser, not about the program.
Compare the pitch with the source
Hypothetical example: a Hampton farming family are given a presentation describing eligibility, amounts and processing times, and asked for a retainer at the end of it. The single most useful step costs nothing: ask for the same statements in writing, then open the official program page and FAQ and read them line by line against the document. Note the date you read them.
Where the consultancy's account is accurate, that is a good sign and the family have also learned the framework themselves. Where it overstates, understates, invents a deadline or describes the payment as an investment that will be returned, the family have learned something more valuable. Do this before paying anything, because any right to recover a private retainer depends on the consultancy contract, not on the government program.