I'm confused. The screen shots show your speeds getting worse and they are from December 14-15, 2012. And those aren't great speeds even for 3g I think.
What speeds are you currently seeing as opposed to what's shown? I'm seeing two of the same screen shot but my Tapatalk app can be weird sometimes. Are both shots supposed to be the same?
If you're still only seeing 722k down something is still not right, I'd expect double that on 3g. How are your 4g speeds?