Its quite simple really.
Put in a route request, if it doesnt get actioned then take the route off your card.
Its your card, and ultimately your safety and career on the line if it goes wrong.
This , I really dont think some people realise it is totally up to them what is on their route card . When you sign it you are saying that you are competent to operate over the route
If at any point you dont feel competent any more to operate a route then put a review in and then if you dont get the review in a timely manner take it off your route card .