rechargeVoucher redeems a top-up voucher for an account: the voucher’s value is converted to the account’s currency and added to its balance as a voucher payment. Use it to let accounts top up from your own website or app, as Make Payment with Top-up Voucher does in the portal.
The method supports trusted mode with i_customer, the ID of the customer that owns the account. In trusted mode you can also pass i_voucher instead of voucher_id and secret_pin.