Limit of authorized devices reached - Help needed in deleting the authorizations!

Dear Adobe Digital Editions Team,

I've reached my limit of authorized devices (since ebook readers and phones tend to break every now and then..) and would like to deactivate some of them. The contact person in the chat referred me to this forum and I would be glad if you could help me and delete the authorized devices as soon as possible!

Thank you very much and best,

Laura