I sold a vinyl record on Discogs and used Paypal as the means of being paid. The record cost 29 euros. Shipping was 17 euros. Tax was 4.75, so the purchase total was 50.75 euros and the purchaser sent this in good faith. From this I had 2.83 deducted as Discogs' 9% fee. However, I only received 38.16 euros. Paypal indicates that a staggering 9.76 euros has been deducted in addition in the concept of a "Partner fee". This is more than 21%; with the previous fee it is 25%. This is totally abusive. In the first place, it is arbitrary and unannounced. How do I know what price to charge if Discogs are going to charge me 21% more without warning? I am no longer going to deal with them.
They use dishonest business practices and the internet is full of angry sellers saying the same thing.