The dealer is not being honest about you having to go thru them first for repairs to be taken care of. You can and should call the manufacturer and share the list of repairs your expecting to be taken care of. Usually there is a brand/warranty service manager over the line of rig that you purchased who can help coordinate repairs with your dealer.
Too many times the dealer takes your rig in and uses the manufacturer as their excuse for not getting approval for a repair, or waiting on parts on order, etc., only to find out they have not even called the manufacturer yet.
Get the manufacturer involved and I think you will get things moving and the dealer will not be able to use them as an excuse.
