Never pay for an year or for multiple terms of years, only be with host on monthly basis, it is very easy then to slip away from them when needed.
Well we decided to pay in advanced because we'd used them for about 2 years or so before with never a single issue.
On a little side note, I gave them a link to this thread and my reply back was along the lines of
"That site is not hosted with GreenGeeks and we are unable to assist you. If you have any other questions, please do not hesitate to ask."
So they're saying your site isn't hosted by them? Weird.