It's pretty obvious that if you leave in the middle of the week that you won't get paid. The payment cycle is usually a 7-day one, meaning you need to wear the signature the whole week. Monday until Sunday, and probably even the following Monday because the campaign manager needs time to count all the posts.

After you got accepted in a new campaign, you were to quick in changing the signature details. That's what got you in trouble. This is something that you should have discussed with Royse777, and he is the one that must give you the green light if you want to get paid.