Charging Problem for my M500

I have had an SPH-M500 for about a year and a half. About 1 month ago the phone started not accepting a charge from both my home and car chargers, unless I bent the phone back adding extra pressure where the charger enters the phone. I can't figure out how to fix it (cheaply) and it sucks that the warranty is out, but I can't qualify for an upgrade (even if I wanted to). It seems to be getting worse, ie. more pressure is needed, and I'm afraid the phone will just stop accepting a charge all together. Any ideas... thanks in advance.