Lhasa Gift House - Kathmandu, Nepal

I was in Kathmandu in April 2010, and I made a purchase in Lhasa Gift House in Thamel. We agreed two necklaces with a price of 6300 rupees and I paid by card but when I got back my country I saw in my bank account that I had been charged ******** rupees. In fact when I bought the necklaces at no time they told me ******** rupees, we even talk about the price in euros!! I contacted the shop to solve the problem, but they told me the necklaces I bought were worth ******** or more. I was very disappointed because I was cheated... I would like people know it, so that visitors will be prevented from being cheated.