Hey Lifehacker, I just learned that Vodafone plan to stop offering all Crazy Johns plans in September. I've been offered a new deal but it's nowhere near as good as the shared plan I have currently. Nothing Vodafone offers that is incentive enough to switch and go on a contract. But if I don't change before the switch-off, will I be "rolled over" automatically?

One year ago, Crazy John's Australia finally shut down, with all remaining stores for the once-prominent phone provider rebranded as Vodafone outlets. To mark that anniversary, here are 10 lessons for entrepreneurs from its late founder, John Ilhan.

Hi Lifehacker, I am currently a Crazy John's customer for mobile phone and mobile internet (with 18 months to run on a 24 month contract), and with the news that the brand will be absorbed by Vodafone in the coming weeks, I am wondering what my contractual rights may be should I wish to terminate my service given my past experiences with Vodafone have been less than satisfactory! I didn't sign up to deal with Vodafone -- are there any outs here? Any insight would be appreciated. Thanks, Not So Crazy

So long, Crazy John's. Vodafone is killing off the Crazy John's brand, with stores set to close by February 20. What happens if you're a customer and don't want to switch?

Dear Lifehacker, I have my mobile phone with Crazy John's and just received notification that my bill is going up by $1.10 to send out a paper invoice. I was a bit miffed at this when Optus did it years ago and was wondering about the legalities of it. I have a small freelance business and like the paper invoicing for my records. Can I send them an invoice for processing for the same amount and get away with it? Thanks, Paperlover

For a mobile phone that is only used very occasionally, a long expiry prepaid deal makes sense. What choices do you have? Planhacker rounds up the offers on the Australian market with 90 days expiry or longer.

A prepaid mobile broadband service is ideal if you want occasional internet access while travelling, or just need a backup service when your home or office broadband goes down. Who has the best deals? Planhacker rounds up all the current offers in Australia so you can compare and choose.

Unlimited plans have their own traps, so many people prefer to stick to traditional postpaid cap plans, which promise large amounts of call value for a fixed monthly payment and will usually throw in a handset as well. But just how do they compare with each other?

"Unlimited" mobile phone caps generally offer free calls to Australian phone numbers, but beyond that the conditions and details vary widely. Planhacker examines the traps associated with the unlimited deals on offer from Australia's major carriers.