I wouldn’t bother with that. Ask @BlueRabbit how his game downloaded stuff for weeks and he never got to see the floor in Agartha !
In your case, I’d suggest you go into your installation folder, look for a folder called “RDB” and delete (or move away) its content. And then start patching again. From scratch.
Q: “Why not use the repair function in the launcher ?”
A: Because a Funcom moderator said it doesn’t help with corrupted files. Link: