DON'T PAY FOR AN EXTENDED WARRANTY!!!
I have been without my laptop now for 6 weeks and all you get is "the replacement part is getting delivered tomorrow" multiple times, the worst thing is they used sub-standard parts on the first repair and even put the wrong screws in the bottom of my £1000 laptop.
When you ask about SLAs in regard to replacements they just repeat "We'll let you know when it's repaired", which is unacceptable as I keep getting told it's just a few more days.
I'm an engineering student and can't afford to keep buying laptops and I start my studies again in 2 weeks, this is totally unacceptable and a complaint has been raised. I paid for the extended warranty because I can't afford to be without my laptop, all they've done here is taken 6 weeks to achieve nothing when the manufacturer can fit a replacement battery in 2 weeks or less; the actual replacement it's itself takes 30 min at most too which is further salt in the wounds.