Receipts: AyA no longer send paper receipts printed. To check your receipt, have you NIS number and go to https://www.aya.go.cr/servicioCliente/SitePages/consultaFacturacion.aspx
Form to receive invoices via Emailhttps://www.aya.go.cr/servicioCliente/SitePages/formularioFacturacionEmail.aspx
Payments: In almost all banks, supermarkets you may cancel, I remind you that if you do not pay on the date set, 3 days later, you be disconnected. For reconnections, just cancel at any point of payment and reconnection can take up to 3 days.