Delete Clusters That Are Fully White?

I'm working on a project and am particularly new to the whole excel world (especially with macros). Currently, my boss has some data that needs to be refined and organized. Until I get a sense how to have a macro do everything all at once, I plan on have macros do each step more quickly.

Right now, the macros my boss has given me allows the data to be organized into clusters. Each cluster is separated by client IDs in column C. Each cluster is separated by a blank row. We are looking for clients who have not paid their dues and are marking their unpaid dues with colored rows. The dues that are paid are left as white. However, there are clients who do pay their dues, leaving their entire clusters white. I was wondering if there is a macro to remove those fully white clusters.