If I understand the OP correctly, he opened an outlet as part of a franchise agreement, and the business failed, He is now claiming it failed because the franchise's chains original financial predcitions were completely overstated. Is that correct?
If what he is saying is true, then firstly, why did he not carry out an appropriate due diligence of the franchise companies predictions and on the area to see if they were viable.
Secondly, why would the franchise chain give overstated projections, If the shop has gone bust, they're potentially out of pocket also, both in financial terms and reputational terms
Lastly, could this have failed not because the franchise chain over-predicted their forecasts, but because the OP was incapable of running the business. Sorry if this is blunt but it's always easier to say it is someone else's fault
If the OP could post a coherient legible post with more detail on it, he would get more constructive and helpful advice.