Nutrisystem Going on 3 Months without a credit for returned Food. Internet

Hello,  I had been on the nutrisystem diet before and the food isn't that great, but it did work.  I needed to lose more weight so I went back on it at a later time.  I couldn't really tolerate the food anymore, so I sent it back - full order.  That was on June 23rd.  I have called a couple of times with the information on the UPS mail form.  They said that they had no record of that conversation (inAugust) with a rep named Bashir.  Then a woman named Danielle assured me that she would see to it that the credit was put through on my charge card.  I spoke to her at the beginning of the week, she said it would go through in 24 -48 hours.  It has not.  I'm tired of calling them, being on hold for long periods of time, and having to listen to "tons" of propaganda advertisements.  It takes roughly 1/2 to 3/4 of an hour each time you call.