Retrieving user tweets (no replies) in a very active account


Hi all,
I’m doing a web job for a client that has a super active account (over 300K tweet to date, over 1K daily).
The goal is to display only original tweets by the client, and exclude all replied tweets. I tried using -
but I only get 1 item in the json response. It actually doesn’t matter if count=10 or count=1000, I still get only 1 item. (without the count attribute I get an empty response).
I assume that this happens because of the count limit, and the fact that my client had more than ‘count-limit’ between his last two original tweets.
is there a way around this? any suggestions?