Leaving My Isp

[100howard]

I've recently sold my home after many years and so have asked my ISP how I should deal with my phone and broadband which I can no longer utilise. They suggested putting my account on hold for two months until I have a new address. That time is nearly up.
However I'm now renting a property which has a phone and internet currentl.
My problem is that I won't be in a permanent new home for another eight months (if the builders keep their promises) so I won't need another phone line and ISP until then.
What happens to my various email addresses created with my previous ISP?
I know that I can also use my gmail account, but I need to have a variety of other addresses for business and personal reasons.