An energy company is Ofgem-accredited rather than FCA-authorised, so no firm reference applies.
Broadband and telecoms sit outside FCA authorisation, so no firm reference applies.
From what you have told us this looks like our affiliate route, where you promote our comparison service and earn commission on the customers you refer. There is nothing else to choose. Add anything below that would help and we will take it from there.
A partner without its own permission is usually appointed an Introducer Appointed Representative under Seopa’s authorisation. That carries regulatory responsibility on both sides, and the form it takes is agreed in the contract before launch. Nothing is needed from you now.