Cleanup of unused files and old backups

I host www.swim-gear.dk on www.simply.com and the storage quota is bloated far beyond what the site really needs. The priority is to clear out unused files—chiefly a pile of old backups that are no longer required—so the account goes back to a lean, maintainable state without affecting any live content, the database, or current media.

Deliverables
1. Storage phase
– Audit the file system on simply.com, identify and safely delete redundant backups.
– Provide a short before/after report showing total disk usage and items removed.

Solid experience with WordPress file structures.
Let me know how soon you can start the cleanup.