Is the broker eligible to take commission from the buyer of a property?

I need assistance on the agent/broker commission.

I had bought a property recently wherein I approached directly the sales office of the developer and booked one apartment.

The developer has appointed an agent/broker from their side to handle the process. As per the SPA, the broker is eligible for an amount of 2% from the seller side.

Now, after completion of the handover, the same broker is asking for 2% from my end.

The property is bought directly from the developer and I am the primary owner (i.e. the property is not a resale property).

Is the broker eligible to 2% commission on the property value again from the buyer when he has already been paid by the developer?

The SPA does not mention any commission from the buyer, can the broker still insist on the commission?

As a buyer, what rights do I have in this scenario?