The PussyCat Dolls never had an official account, to the extent of our knowledge. They only had official gear available (which is no longer usable due to an error when saving).

The accounts RunnerRunner and SchoolGyrls still exist, but are set to friends only. Their IDs are:

RunnerRunner: 48883638
SchoolGyrls: 48883643

These IDs were found with the help of Number Retriever PRO.