Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
Please go trough this documment >
documentation.jomsocial.com/wiki/Updating
however updating with iJoomla installer is more advised, since everything is automated there.
I want to try to upgrade Jomsocial with iJoomla Installer on my site that I copied to another domain: rijk.studentora.nl.
Can you change for some time my support domain studentora.nl to rijk.studentora.nl?
It seems that you already used all domain changes for your account, please contact our billing department, maybe he'll be able to help you on this matter.