Currently i have one client that,
after order started he promised me to give voice over for their video, but until now he don’t.
Already using resolution center twice for extend delivery and it’s been 1 week just waiting voice.
what should i do?
I think this guy just wanna messing up with me, he is member from 2016 and i don’t see any review from seller for him. is that natural? member from 2016 but never once received a review from the seller?
Cancel. It isn’t worth your time and people who pull this tend to be troublemakers in other ways ie scamming.
if i cancel this, is this reduce my gigs perfomace?
is there any way to cancel this without affect my gigs perfomance?
Nope.
That’s partly why I don’t bother with ratings.
Create gigs whose success won’t be determined by your ranking, level or ratings. Strong businesses don’t depend on things they can’t control.
The key is high proficiency, high demand, low supply.
Thankyou for your advice,
you are such very kind person 
But before cancel I think from my opinion contact Fiverr CS regarding this matter.