cards with one time charge like 150 rmb so if you check in for one week, the discound is already paying for it.
Some banks offer the gold cards to their 大户s with 50万 or more in their accounts. Instead of waiting in the lines for long time you may get special attention at the designated windows and nothing more. Those cards shall be free of charge to say the least.
Chinese banks are the most time wasting and inefficient ones in the world.