I want to cancel a order because the designer did not deliver what he advertised and tried to up sell. There are no contact details to Fiverr themselves to get my order cancelled.
You can request a cancellation in your order history (I suppose you havn’t approved it?).
Just motivate why you aren’t happy with the work and ask for a solution. Before the Gig ends the seller has to respond to you.
Sorry you didn’t get what was advertised. It is encouraged that sellers try to upsell.
It’s pretty common to offer buyers more options when they order.
You can tell the buyer why you aren’t happy and request a refund.