Not in Shanghai. But sounds like a desk worker is trying to Shanghai you into giving them an inflated membership fee, several hundreds of which they'll definitely pocket.. xD

ask a local friend to go looking for the information you want.

Then you will get a more realistic price.

So some anon poster is supposed to know the real price? Even if a poster paid "X" , who's to say the price didn't go up? Very simple, when it comes to something like this shop around and look at the price list. If they do not have a price list and the quoted price seems weird (or in your case , varied). Then make an adult decision, you have all the information you need.

They have different price of different offers like one branch/all branch membership, but basically the range is around 3000-4000 for a year membership card.

Like everything here it's negotiable so depending on your skills is what price you will get

I pay 1000 for 3 months.