I have to figure the online agent and the automated system are using the same database, so it would be surprising if they provided different answers. If I were a betting man, I put more faith in the automation than Verizon's telephone sales agents.
There is a long history of misinformation from the telephone sales people. They are paid to sell, delivering it, and making it work is someone else's problem.
As for a tech. I'd say the odds are in favor, but I don't have any first hand knowledge. Depending upon the actual ONT you have, if 150/35 is available, they might have to replace the ONT to get 150/35 service. If they don't have to replace the ONT, then you probably don't need a tech to come out.
You almost certainly will have to replace the router. Only the latest routers have gigabit Ethernet, and 802.11n capability. The earlier routers have 10/100mbps Ethernet, and 802.11b/g Wi-Fi, neither of which are fast enough to support the 150/35 service.
ty for your response, how do you suggest I try and push this upgrade along if I keep being told the service is not available in my area?
I apologize for the mixed message you've been receiving. I can help you. I need you to fill this form:
http://www22.verizon.com/onecms/verizonsupport?ID=Markourn ~ Make sure to include all account, contact and problem information in the “Issue” box at the bottom. Once we have your account information we can take a look to see what upgrade is available.
As mattheww mentioned, we will only need to dispatch a technician if the ONT we've installed isn't capable of handling the speeds your subscribed to.