Our Model 3400RL 2007 5th wheel #5289 has a crack in the left front corner of the cap. Dealer has been trying to get the factory to repair or replace to no avail. I feel cap should be replaced because if just fixed, will show discoloration in 2 or 3 years if it does not crack again. Problem needs addressed not just patched. Have had at dealer for 30 days waiting for answers. What is next step (attorney?)?