MetroPCS / customer service

These people are the biggest scammers out there. I was on the phone with a Customer Rep named Gerna ID # 501121 and I asked her why online they have the sim card online for $10 and in store for $20 and her response over and over again, as if she's a robot is "Ma'am you need to ask the store why the price is different." Like wtf. So I asked her if she's customer service, why isn't she servicing the customer. She was as helpful as a splinter in a finger nail. I was told to call around and ask stores how much their sim cards are selling for. It's amazing that I can purchase this item lower on amazon than in a legit METRO PIECE OF [censored] store.