No one at customer care knows whats going on

After spending 2 hours on the phone with assorted agents. My problem has still not been resolved. I get transferred to someone else, then I'm put on hold, then when someone speaks to me again I'm at the first link in the chain again and have to go through the whole process again. No one there has any clue as to what the issue with my vodafone mobile wifi ****le is. Or has any idea what there job description is. Can somebody who knows these devices please phone me back as your customer care really really really doesn't have a clue. I've had 4 different opinions and it has still not been resolved.