Double bought Cartel market

Help EA I accidentally double bought something on the cartel market.  I bought the large customization pack for 240 and went to change my characters hair to the long braided ponytail, but saw that it wasn't there.  so i just hit Buy again for 240.  the i found the original pack i bought for 240.  to change my hair it should have only cost me 80  i need help EA Please help!