Frame manufacturer not covering crack as saying it was crash damage My Ti frame developed a huge crack in the frame a week or so ago. A pain I thought bit it'll be covered by warranty...

The frame builder is now saying that it's crash damage.

I really really doubt it's crash damage.

I have fallen off this bike twice, once I went into the back of a slowing cyclist, the other my front wheel came out from under me and I slid along the ground.
Both of these were nearly 2 years and around 10,000 miles ago.

What can I do? It's my word against theirs.

They said that scratches on the hoods mean that it's been crashed! Those scratches are 2 years old when the bike slid along the ground. Scratches on the frame are from when I leant it against my garage wall and it fell over. They can't use scratches to determine if it's crashed.

Absolutely fuming about this, I hope some of you guys can help.

I live in the UK for your information.

Some pictures:
Despite what others have said, a warranty is a bona fide contract between the company and you. It's used in the selling of the product thus is covered by decent consumer protection law (in the UK anyway). This article from Which suggests a good process to follow.

Keep a record of the contact with the company, try to follow their warranty procedure. If you're sure that the warranty exclusion isn't valid (crash damage), then it'd be worth getting an independent opinion on whether or not the crack was crash damage. A good bike shop should be able to write something up for you. Then show that to the company. 

If you end up in a deadlock with them, then contact the financial ombudsman. Another avenue to follow might be section 75 of the Consumer Credit act. 
"Don't forget that if you pay for anything with a credit card between the value of £100 and £30,000, your credit card company can be jointly responsible for any faults that develop. You can either claim for a refund using Section 75 of the Consumer Credit Act or, if you are looking to get the product repaired, you can claim for the cost of repairs."