Not being able to get through/ sending wrong info

So this has happened a few times where phoning to ask about an existing queries, the phone gets put down after waiting a few minutes to get through this is very frustrating as this wastes my airtime. I still am waiting for my transfer to go through. I have received no feedback. This being said the service is absolutely terrible. Or they will send incorrect information and then you need to wait almost a week for the correct information to be sent. Many a times I have felt like I myself could do a better job. Feedback is very essential to good communications, this is taught in business communications.