Shocking Customer service!!!!

*********** Customer service Consultants!!!! I've been trying to upload my FICA documents for the past 5 hours to No avail even after 4 different consultants attempted to assist though their stories were inconsistent. Sending a back and forth email following instructions on how to clear the error, still same results and the more I speak to the consultant it seems they FAIL to understand my query. Sent screen shots, explained myself so many times. I'm exhausted dealing with such incompetence. Do they not have managers to escalate such matters to? Honestly I'm highly disappointed in their service