Fusion REST API not working as expected

Hello experts

We have a client using Product Management and they are using APIs to integrate with the List of Values: LOV:

When they hit the API it tells them that the total is 1508 items (first image)

According to the documentation, blocks of 200 items must be used to bring everything, using the offset field. This is the documentation screen:

However, when the offset is greater than 500, it does not bring information:

They need to access the complete list of LOV, and they don't know how to get them,

Could you please help us with this?

regards