unless you cancel before the 30 days are up, as it clearly states in the terms.
You should backup your site build if you do not wish to proceed after the 30 days. Also remember to cancel the trial if you are not completely happy with the product or service, so you are not charged. Do this before the 30 days are up.
Then if you return at a later date you will be able to use your saved files, so your good work won't be wasted. Nice to know that......
If you get stuck then here is a good place to look for tips......
Support can also help you out with any issues you may have.
I do apologise for not getting back sooner. Please always include a members (nickname) @ somename
in any correspondence and they (I) will get a notification. Otherwise we have to trawl through messages and some of us write hundreds (me lol).
I'm not familiar with website builder but this may help : https://uk.godaddy.com/help/backing-up-or-restoring-your-website-2992