Sounds like it is time to move on and find a new agent. I would have an RE attorney review any contracts you have signed with them to tell you what your rights are. However sometimes it can be as simple as a nice letter telling the agent AND their broker you are unhappy with the service and will be moving in a different direction.
You need someone who meets your home buyer needs - which includes being tech savvy and responsive - and someone who will only protect your buyer interests in every transaction.
Check out our awesome web-based buyer brokerage ... sounds like we might be a great fit:
Give us a shout if you would like further advice on how to handle letting your broker go: