You found the Easter Eggs. For an annual subscription only $ 73 per month, for a monthly subscription only $ 110 per month and you are lucky to be based in the UK, because the rest of Europe suffers even more, $ 81 and $ 122 respectively.
It is not for nothing they call it the Adobe Cash Cow CC. The moment you stop renting, the software no longer works, you can no longer access your own copyrighted material and you still have to pay a severance payment of 50% of the remaining months in your subscription. Nice deal,
The only alternative is to buy the perpetual license of CS6 or look at Avid Symphony or Edius as a replacement.
If the software is already installed, you will need to renew your subscription. That will allow you to continue working. Then when you're done you can cancel the subscription.
Even after one month.