I've ended up migrating back to GiffGaff, sorry but I was just getting a poorer/no signal in all areas I used my phone Most of East and North Yorkshire), so had little choice.
I used the PAC code to transfer my number, which all worked perfectly fine (this time), but it hasn't closed my Plusnet mobile account, and now it's showing as being in credit by £5.20.
Is it possible that could be either refunded and closed, or perhaps transfer it to my Broadband account?
Fixed! Go to the fix.