Netflix cancellation is it possible?

You can undo a Netflix cancellation so if I bought Netflix for a month and cancel it, then I can no longer watch Netflix a month later, but you can undo a cancellation so that you pay again on the day you can no longer watch and you can continue can watch

In principle, you can renew your subscription at any time.

Even if I have already given notice? And how is that Dan?

Just go to your account details and then take out a new subscription: https://www.netflix.com/...ourAccount