Textbroker Continually Rejects Article Requests for Reasons Never Rejected Before, Places me Behind on Deadlines , Internet

Textbroker is a copywriting service that allows people to request articles to be written. Before a request goes to a writer, it is reviewed by Textbroker. I totally understand that this is a beneficial thing, however, they do not provide specific criteria of what not to include. 

I have submitted the same articles for submission three times now, and they have all been rejected for very obscure and non-specific reasons. Because of this, I have now fallen behind on my deadlines, because Textbroker is being very difficult. 

The best part? I am using the same description I have used for articles that were previously approved about 1 month ago. So why did they allow them to go through last time, and are making me change so much this time? Textbroker has not provided an explanation, nor do I think they will ever. Poor customer service, poor descriptions / criteria.