I doubt you are going to get much out of Easyjet. Most LCCs discourage booking through 3rd parties. Indeed Ryanair has taken them to court to try and forbid them from offering flights. As the LCCs such as Easyjet don't offer any kind of commission to agents, you are nearly always going to end up paying more if you use a 3rd party than booking direct with the LCC. The 3rd party agent can add what they want to the fare and disguise it any way they want.