I wanted to buy the 4G LTE Mobile Hotspot MiFi® 4510L Prepaid and under the devise screen I click on view plan information and I get the plan that shows monthly access fee $20 = 1 GB $30 = 2 GB $50 = 5 GB & $80 = 10 GB but if I go to the plans page it shows by the week $15 = 250 MB by the month $60 = 3 GB by the month $90 = 10 GM. Look at the pictures. OK witch is it?
The bottom of your second screenshot (broadband plan.tiff) is correct. There are 3 prepaid options for the MiFi:
250 MB/week for $15.00
3 GB/Mo for $60.00
10 GB/Mo for $90.00
Everything else reffers to a standard 2 year contract or a prepaid tablet.