THIS STORE HAVE PANTIES MADE BY UNDERSCORE. I LOVED TO BUY THEM BECAUSE THEY MOVE WHEN I DO. WHEN I SIT AND STAND UP THEY'RE NOT STILL SITTING. I BOUGHT SOME PANTIES A COUPLE OF TIMES AND WHEN I USE THEM FOR A FEW TIMES THE ELASTIC IN THE WAIST WOULD PULL A LOSE. THESE PANTIES COST $12.99 FOR A PACK OF THREE. THIS LAST TIME THAT I BOUGHT SOME THE PANTIES WERE RIPED FROM THE WAIST BEFORE WEARING AND THE DON'T TAKE RET URNS LIKE THAT. I DIDN'T HAVE THEM ON SO I THREW THEM IN THE GARBAGE. WHAT SHOULD I DO IN A CASE LIKE THIS?