Command line copy onto Geodrive

Not sure if I'm in the right place, so please accept my apologies if that's the case.

I've written a script to copy some files onto our Geodrive, however, when I run it, I get an "Access Denied" error message.

It seems to create a 0kb file on the Geodrive, but then won't copy the rest of the file?

When copying manually using Windows explorer, it copies successfully.

Can someone tell me what I've missed?  Or point me in the direction of something that can help?

Thanks in advance