Chargeback rule. Zero tolerance.
If you initiate, encourage, or facilitate a chargeback, dispute, or reversal against any exchanger on any payment method (PayPal, Cash App, Zelle, Venmo, bank wire, card, or any other), you are permanently banned from the service. This applies to all current and future trades, on this and any successor Ninja Swap service.
There is no warning, no first-strike, no appeal. The ban is final. Your Discord ID is added to a public blacklist that is shared with allied exchange services so you cannot trade elsewhere either.
If you cannot accept this, do not open a ticket.