Hi my wife is on pre pay Motormouth and I am on on account Easy20

We want to swap it around so she keeps her number but is on account and I change my to simply pre pay since she does the bulk of txting and is better positioned to utilise the free minutes

It appears the only way to do this is that she changes to on account but then signs for 12 months with a $50 exit if we leave and I change to pre pay

Obviously we could swap numbers but she would rather not

Furthermore I lost my phone [& SIM] and will cost me $30 to get a new SIM but the irony is if I change to TCNZ or 2degrees it will cost less than $30 to get a new one