Soupist's dashboard

My son and I both are getting the API Rate limit restriction from our third part app. We aren't using any hits on other apps. We both closed our twitter apps last night and first thing this morning it tells us we have hit the rate limit. I have another twitter account that is working with this app. I know the limit is 20 per hour, but it looks like ours is set to "0". Do I need to contact twitter to look at our accounts?