Upload by sftp fails - see attachment 2.
Established an sftp connection from my mac High Sierra to my site on siteground.com and created a new directory ok, but all attempts to upload files from my Mac High Sierra failed.
Please refund my purchase as previously requested in this ticket.
Please contact your web hosting service provider for assistance why authentication is failing for file transfers. A workaround might be to choose Preferences → Transfers → General → Use Browser Connection or the same option in the bookmark setting.