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I wouldn't clean his cage after just two weeks, if you can find where he pees then clean that, you don't have to worry about poo for a while as it's dry & won't be a problem.
If you give them a sand bath with chinchilla sand (not dust) which they need anyway they will often pee in that.
It does sound as though his cage may not really be suitable for him, they don't need lots of levels but rather one larger floor space then you can give them an appropriate house, large enough wheel, lots of things like cardboard tubes, egg boxes & cork tunnels to hide out & forage in.
There a thread here that might help with uploading photos.
How To Embed Photos