I've recently signed up 10 mobile services on $45 Business Infinite plan on Vodafone.
I was offered 8 months free for all my sim only services, and 3 months free for all services I took a Samsung Galaxy S II.
I think this is by far the cheapest offer available on the market for sim only contracts, it works out to be $30/mth over 24 months and I was offered additional 1GB data per month on top of the standard $45 Infinite plan.
Also unlike a lot of the smaller reseller companies on the market, you are actually getting billed by Vodafone directly.
Call my Vodafone account manager to get approval for the same offer, he's a good friend of mine. Just mention you're referral by John from easy furniture. I think the offer is only available to business/coporate clients.
John
If you can actually make and finish a call without dropouts (or other known issues) with said network, then fair enough. However I don't like the sound (pardon the pun) of free calls if you have to keep calling the person back, let alone run a business - sounds to me 8 months is how long its going to take for them to do something about it.