Adpay SOAP:GetItemCountByCategory returning handful of categories and wrong counts

Title says it all.

I’m using this API: http://staging.adpay.com/affiliate/affiliates.asmx?op=GetItemCountByCategory

However, it is only returning about 28 out of 40+ categories and the counts are incorrect.

I’m currently waiting on Adpay support. However, unknowing how long its going to take for them to contact me I would like to know if anyone else has had the same issue using the API and possible explanations/fixes.

Thanks