...for a Vodafone expert (John?)

 

(1) My wife and I have her phones on some sort of shared plan - I pay for my plan as well as $19 a month for her (formerly Prepay) plan. She would like to upgrade to an iPhone 6 (S or non-S) from her iPhone 5. We purchased her iPhone 5 outright and she just used it on Prepay.
Is there an option for her to purchase the iPhone 6 (S or otherwise) and pay it off over 12 or 24 months on my account?

(2) My phone is a Nokia Lumia 930 Windows phone. Currently there is no "My Vodafone" app for the Windows phone, so I have to visit the Vodafone website from my phone and click on "My Vodafone" from there to see my data usage etc. That works fine, and shows me how many megabytes I have left, but there are two other gauges there - one is called "5" and says "23 used...-18 remaining" below it. The other one is called "110" and says "506 used...-396 remaining". What are these for? Voice minutes/text messages? The plan I'm on has unlimited minutes and texting.

Thanks in advance