The KDE sysadmins consist of a group of contributors which maintain the KDE infrastructure.
To organise the work, they use a ticketing system. You can submit a ticket at https://sysadmin.kde.org/tickets/
At that page you can request:
Also, please report not working parts of the infrastructure. Don't just assume someone else has done it!
If you want to request a subversion account, you need a different form, it can be reached via http://techbase.kde.org/Contribute/Get_a_Contributor_Account
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