Mondo Service
I upgraded my contract a few months ago and recently found out that it was not entirely what the sales person and I agreed upon. 

I wanted to cancel the contract and requested an investigation.
Mondo did indeed investigate and listened to the recording of the conversation the salesperson and I had during the upgrade.

They happily agreed to do a reversal of the upgrade and not charge me penalties and allow me to start a new upgrade process where I get exactly what I wanted in the first place. - I am happy

I am giving them a 4 star because I had to go through quite a few calls and an entire day of a system that was down. But when I did speak to a Mondo representative they were friendly and very patient with me.