I can't seem to load a new trial so I am with out email

can’t seem to renew the new installment

Just get a free license by going to: http://www.emclient.com/purchase?lang=en.  eM Client will only allow 1 trial period.  The only difference between the trial (Pro edition) and the free edition is the limit of 2 email accounts on the free edition.

I Can not get another free license before it expires in 3 days time, when I apply for a renewal it says I already have a license. also forgot all my account details,the key info they sent me wont work.how can I find them again

What account details are you talking about? Your eM Client details or your email account details?

You can get a copy of your current license and details at http://emclient.com/lost-activation-key