I think some sellers have started a new trick to lower others completion rate. I have maintained a good 100% completion rate on my gig & 5.0 ratings.
now today i received an order form other seller who is selling exact same thing which im selling. He ordered the most premium package of my gig and now asking me to cancel the order.
i highly doubt that this seller is trying to ruin my order completion rate.
All i want to say is beware of such sellers and report them to fiverr support.