Off I went - to do another sub website - not realising I was in existing one.. deleting pages etc and adding new ones..

Realised before I published - so websiet is ok at moment... but details saved in RVsitebuilder are all changed...

Is there a way of restoring - as I forgot to make a back up.. or will I have to do it all again?

Do you keep backup file generated on RVSiteBuilder homepage? If yes, try to restore on RVSiteBuilder homepage.

If no, ask you provider if he has the backup data of the whole cPanel account before you made change, probably yesterday or last week? If there is one ask your provider restore it, keep in mind that you will lost the data created after the backup point. We do not take any responsibility if you lost it. After restore it DO NOT access to RVSiteBuilder, submit your cPanel access to us. We will check if we can create the backup file for you. We don't garantee that we can restore it. It is depend on your data.