Facebook Verizon account responded on my FiOS problem!

Facebook Verizon account responded and ask me to fill out some for at http://www22.verizon.com/
Here is what I put there:

I am experiencing the following problem with my FiOS: cannot upload files >2-3 MB. 
Specifically:


- I cannot send attached file via e-mail if file is bigger than 3 Mb using my  verizon.net e-mailbox. I have showed that to tech support person using "showme" feature. (mailer return general network error (sudden disconnection or inactivity and so on)


- I cannot upload any videos on Facebook, the uploader works fast for 1st mb than  freezes trying reduce transfer speed endlessly. I plan to record that and post on my blog...
- and have huge delay of uploading any videos on YouTube. Some files I can upload 
10Mg - several hours because Chrome  can recover network errors and lost connection. Old browser (e.g. Safari, just report general network error)


I have ticket opened with Verizon VADQ08Z(2?)33S, but they cannot figure out what's wrong. I have this problem about 2 (!) years.


So far they suggested replacing router. I did. 2nd time for the last 2 years. The problem is still there....


Any my call to Verizon I have to show speed-test which is OK as it uses small files, router resetting/rebooting/reconnecting, Optimization from some Verizon site. Traceroutes were not suggested to do so far. I can do that if that helps, just tell me.


Testing with that... also I locked my account and cannot reset that as the way Verizon website does that does not work send my on some circle...


Home-agent I installed crashes often - no help what so ever.... 


 Is that a time to switch to Comcast?


HELP!


When I submitted that I got message "cannot process..."