Verizon Unlimited how's it working for you?

The new 10gb plan on my iPhone is not working for me. Comedy of errors. I have had plan for 5 days and data is gone. No way I used it all up in 5 days, impossible....except I took it back to the version store and she accidently did a back up of my phone and left the data on and did not use their wifi...Lots of picture on iPhone I had not cleaned up...We called when we run out and they told us they would give us 5gb back, but only got 2.5gb back for some reason. Other than that, the speed is good for what I need. I do not download any movies or anything, just emails and log into office computer to so some business postings. Might switch back to AT@T. I used a 5gb plan there for a year and never ran out of data once. Does not make much sense to me, but I am not an expert on this stuff.