Samsung mobile phone, battery, galaxy s, faulty product, Internet

This is the first ever experience I am having with Samsung Customer Service and it has been a disaster. My Galaxy S's battery is obviously a faulty product (suddenly overheating and a fully charged phone's power is going of after couple hours) and Samsung is doing everything not to do anything about it. When I called customer service, I have been... asked questions like if I have another battery to try (who in the world carries a replacement battery for their phones?).

I am being told to mail the battery to Samsung and wait for a week or maybe more until they figure out what is wrong (who in the world waits without their cellphone for a week or more?). I am asking; "If I buy a new battery and than mail this faulty one to you, and you guys figure out that it is faulty, would you refund my money back for the one I purchase?" and the answer is "NO"!... WHAT ARE YOU EXPECTING ME TO DO?

It's like a doctor telling a patient "Yeah, we will fix your heart but we have to take it out for a week, check out what's going on with it and than we will contact you... Oh, btw, do you think you can leave without your heart for a week, maybe longer or do you have another heart to use for a while?"

Sending customers automated emails with "FAKE" nice comments solve nothing! Samsung is not taking responsibility for a faulty product and not offering a sensible solution to the problem! From this time on, no matter what kind of solution you come up with, you have proved me that you don't give a d**n about your customer's satisfaction and can get as cheap as possible not to take responsibility for your own fault!

I will purchase my own battery, keep the phone as long as this new battery lasts (I am sure something will come up since my phone is also a replacement by T-Mobile (NOT SAMSUNG) since the first one was crashing) and after that do not purchase a single item from a cheap company who has made me gone through one of the worst customer service experiences ever!