EloquentRepositories and RepositoryInterface

I trying to implement the following case using laravel5.3 l5-repository

I have Offer Entity and there are many types of offers, basic offer - premium - gold.

each one is validated and created and listed in a different way than the other types

so I have created an Offer Entity Contains OfferRepository interface ,

EloquentOfferRepository extends BaseRepository

and injected them in the RepositoryServiceProvider

Now I want to Extend the EloquentOfferRepository to create ( EloquentBasicOfferRepository, EloquentPremiumOfferRepository, EloquentGoldOfferRepository)

but I can't find a way to inject them in the controller and don't know how to use them then.

via Chebli Mohamed