Ha! So that was their little secret
Internet Provider advertise their speed as kilobits/per seconds.
Most of us are used to Kilobytes, because of Hard Disk space.
they knew that, and use Kilobits to throw us off
Second thing you have to know is upload speed and download speed are different.

For example you see fallowing message while downloading:
like 6.9 of 126.8MB at 471KB/Sec; 04:20 remain
—The Yellow portion is the KiloBits/ per second.