The only official fee for registering a trademark is the registration fee of the Trademark Office of the State Administration for Industry and Commerce 1000 yuan.

According to what you said.

It's obviously your agent. The company just wants to charge you a little more.

It has violated the contract signed by both of you by charging you again.

You can argue and reject any extra fees.

P.S. doesn't need to pay any fees within ten years after the successful trademark registration, and only needs to pay a renewal fee of 2000 yuan to the Trademark Office of the State Administration for Industry and Commerce after the limited ten-year work expires.