I signed up for epicstream to use with my dreamlink t1plus, do I not get a username and password?

I signed up for epicstream to use with my dreamlink t1plus, do I not get a username and password?

If I wanted to use epicstream on my dreamlink t1 plus and on my iPad (GSE iptv), do I need 2 subs?

I just want to be able to use epicstream on my iPad when I'm not using it on my dreamlink t1 plus.