Have received message that reached activation limits. How do I reset this?

[madnurse]

LLike many people change tech stuff frequently today whilst trying to sign in to Adobe to open a book got message that activation limit had been reached.  How do I reset this.  I don't have access to old tech to sort it out.  HELP

[MobileDeveloperCK]

[moved to the Adobe Digital Editions forum]

[madnurse]

I Am not able to find the reply or solution.  I'm seriously not amused by my difficulty assessing your reply. I am not a sweet young thing but a grey oldie.  So HELP

[madnurse]

TThis would be all well and good but I can't get at the answer.  Where is it.