Forum:Problems with rp

Today, 7 june 2013, Katarina's skin is in sale (Sandstorm katarina) so i decided to bought it with my rp. I had about 1200 RP and the skin cost about 487 in sale, but when i bought it i noticed that my remains rp where only 232. Is this a bug? Could someone help me?

greetings, sbaffo.