JD vietnamese server charge 10k vnd (0.43 usd) for 50 ingot, USA version charge 0.99 USD for 60 ingot. Price for ingot is doubled. In Vietnamese server vip 9 to 10 require 18,000 ingot recharge, In USD server vip 8 to 9 require 20,000 ingot recharge. The amount of ingot to upgrade vip level is more than double. So, We can obtain the same items and server in Vietnamese server for 1/4 of the price or less. (note the current on going event in vietnamese server reward 25,000 bound ingot for 2,500 ingot recharge. What make you think you can get away with this kind of over charge? Please, fix the usd to gold price and reward our account the missing gold. Also, fix the vip system. The different in price stunned me when I find out. This is a total ripoff. The gold price is modified to be double and the vip system is more than double, together we have to pay more than 4 times the people that play Vietnam server and guess what happen when all server get merge into a global server? P/S ninja girl reborn (another mobile game) price is similar across their server in different region, Vietnamese server (Hoc Vien Tam Quoc), SEA server (GirlxBattle), U.S server (ninja girl reborn). All 3 servers in 3 different region have the same price for diamond. So why does JD price different from Vietnam server to U.S server and the different is stunning.