How to get all open tickets per account including custom fields through API?

How to get all open tickets per account including custom fields through API?

Hi,

Currently we are trying to get all the tickets through API for each account. But the challenges we are facing:
  1. The accounts endpoint is not accepting a parameter 'page' to get more than 100 tickets.
    1. Endpoint: https://desk.zoho.com/api/v1/accounts/{accountNumber}/tickets?limit=100&page=1
      1. Exception message: {"errorCode":"UNPROCESSABLE_ENTITY","message":"Extra query parameter 'page' is present in the input."}
    2. Endpoint is also not accepting a filter for custom fields. 
  2. The tickets endpoint is also not accepting the parameter 'page'
    1. Endpoint: https://desk.zoho.com/api/v1/tickets?limit=100&page=2
    2. Exception message: {"errorCode":"UNPROCESSABLE_ENTITY","message":"Extra query parameter 'page' is present in the input."}
Is there a way to get all the tickets (more than 100) per account or all open tickets with a filter of custom fields?

Thanks in advance!! 
~Akhil