It would help if you specified the type of service you buy here.
I have bought over 100 times and had 5 bad experiences, all of which were refunded. Check my post in the tips for buyers section, it’s pinned at the top - tips for buyers from a buyer and a seller.
The crux of the post is that there are different types of sellers offering services that sound the same but are vastly different.
2 sellers offering logo design:
One is someone who takes logo templates and edits them, the other does custom logos drawn from scratch.
When people look at their portfolios, they choose the seller they want according to style and budget. Both sellers deliver what they offer.
All goes well and both sellers get 5 star reviews. Template seller gets 10 of these orders per day, custom seller gets 1-2.
Seller one has 5000 5 star reviews, number 2 has 100 5 star reviews.
Who is the better logo designer?
Problems arise when a buyer goes to seller one expecting the quality of seller 2 OR when they go to seller 2 expecting the price of seller one.
Add in the fact that each seller also offers different price packages and options - then it gets complicated. When a buyer sees a stunning logo that cost $200 and orders the basic $25 gig from that seller. “Why is it not like the other one? I demand a refund/I was scammed!” cries the buyer.
No, you were just expecting more than you paid for.
Ironically, as a seller I find that those who order $5 worth are the worst to deal with - as a buyer, the sellers I have spent $5 on have been more problematic. My suggestion is that everyone forgets the name of the site and instead looks for a fair price for the service they need/offer (regardless of where the seller is from).