Thanks guys! All very useful

I have no clicking noise, but the fuel pump does prime and that's about it. If I keep inserting the key it eventually works, but needelss to say, it's a major pain!

I took it to Melville Subaru, that's where I bought the car and they have told me it's too hard to get the parts in and need to disable the alarm. So I have taken it to my normal mechanic to get it fixed... fingers crossed!