Misleading advertising from First Group

First group puts out a holiday special for 5 nights at one if their resorts. To qualify you need to answer a few questions and submit a form to them which i did. An agent contact you via whattsapp to select a resort an dates which i did. Just before confirmation of the booking they send you a few qualifying questions. But in this instance you need to be between 25 and 65 years old. I fell out of this qualifying critera and therefore did not qualify. The problem however is that the age requirement was not included in the initial advertising or the form that i submitted to them. I see this as misleading the public. I would not have bothered to go through all the effort to apply if i new this in the first instance. I did call them but they did not want to hear or accept my explanation. Be carefull of special promotions from this company.