# ESR Einzahlungsschein mit Referenznummer (ESR) was a payment method used in Switzerland. Please note that this method was removed from the market in 2022 as [announced by PostFinance](https://www.postfinance.ch/en/about-us/media/newsroom/press-releases/inpayment-slips-withdrawn-market-2022.html). The preferred method for payment requests in Switzerland is [QR-bill](/docs/payment-processors/payment-methods/qr-bill). ## ESR processors | Payment Processor | [Channels](/docs/payments/accepting-payments-with-findock) | One-time | Recurring | Refunds | | --- | --- | --- | --- | --- | | [FinDock](/docs/payment-processors/findock-native-payment-methods) | Data Entry, Online Direct | | | |