Samsung Galaxy S4 battery replacement program

For the past year i have been experiencing issues with my battery, it has been making my phone overheat and gives misleading battery readings. recently i have been charging my phone to 100% and when i need to disconnect the phone, it takes less than five minutes to die and show me that the battery is on zero%. The battery has now also started to expand/swell. battery serial number is LC1D504NS/E-B<br> <br> I called the contact centre after googling the issue and coming across a battery replacement program, which i am now told is invalid if your battery is older than 12 months, therefore i cannot get a replacement. ref # for the call is ***.<br> <br> If I had known there was an issue with the first phones that came to SA, and if I had known there was such a program, I would have replaced the battery a long time ago, now i am at a point where i literally cannot use my phone without a charger and it is not even 2 years old yet. This is ridiculous especially when i've been thinking of upgrading to the S6 edge. Sorry samsung, you may have lost a very loyal customer.<br> <br> Why was this not made clear on adverts or via email or in-store?<br> <br> I demand some feedback for this.