can u get ec from already done jobs?

You sure can

 

Yes, you have a 2% chance each time you complete a job.

 

Just do the first one. 2% chance, as stated above. 

 

I have never gotten them but people say you can

 

I have redone many jobs but never gotten any that's why I put up my forum post about new jobs

 

I've done jobs for 3 days and i got 10 ecs.. there was even a time i got 2 ecs in one unload..

 

I've only got 1 on job one still doing job two nothing yet

 

I got 3 ec's in one unload off "Team Sugar Mama" once. Got like 45 in a month of jobs when I was semi inactive

 

 I'm trying to save to twenty. I believe I have 16 from a week of jobbing

 

I did jobs 1&2.. im not doing the same job over and over.. like im going to do job #1 5x then job #2 5x.. that gave me more chances of getting ecs but thats fr my xperience soo there