How do you square "2. Payments; where other storefronts tend to custody funds and pay sellers out after 7-14 days, we enable sellers to receive earnings instantly." with chargebacks / refunds?
What we currently do on SellApp, is block purchases coming from VPN's/proxies (via MaxMind) which'll help reduce the rate of fraudulent purchases.
However, that by itself is probably not going to be enough to keep a low chargeback rate for all our sellers, so we are also planning on creating a fraud detection system that factors in a number of aspects in order to keep malicious customers at bay.
For refunds, customers can open a ticket with a seller to request a refund. We also give sellers the ability to set a 'refund timer' and terms of a refund during the product creation process, so that in case something does go wrong, they have that to refer back to.
Lots of room for improvement on both aspects though!
We give the customers a heads up to contact the seller when they get blocked, so it'll be as easy as telling them that they need to disable their VPN/proxy in order to make the purchase.
Although, it'd make more sense if we tell them that and save you the time to reply to a few customer support tickets. Will add it to our roadmap :)
There are so called "residential proxies" that use a IP from some normal consumer ISP connection, not some datacenter IP. However there are services that can detect such residentials too, e.g. https://focsec.com/
