Broken within 15 uses & stuck on bike

I have used my titan disk lock no more than 15 times since I've had it. The lock is currently attatched to my bike outside and will not open - the key simply doesnt do anything. I'm now having to pay through the nose for a specialist tow (as we cant turn the front wheel and I'm 50 miles from home). On top of that I'll have to pay to get it fixed. Apparently this involves taking the front disk off to get at it properly and minimise the risk of damage.

Why make the product with such a poor quality lock, considering the whole point is to stop it moving. The whole thing will cost me over £200 and a lot of messing around.

My advice - DO NOT BUY ONE