diff --git a/make_post_sell/tests/test_crypto_watcher.py b/make_post_sell/tests/test_crypto_watcher.py
index ab19ce4..e8a50c4 100644
--- a/make_post_sell/tests/test_crypto_watcher.py
+++ b/make_post_sell/tests/test_crypto_watcher.py
@@ -2992,13 +2992,16 @@ class RefundTypeTests(unittest.TestCase):
             "refund_amount": Decimal("4.55"),  # 4.55 DOGE refund
             "fee_amount": Decimal("0.45"),  # 0.45 DOGE fee
             "reason": "Test DOGE refund",
-            "type": "underpayment",
+            "type": "Overpayment",
         }
 
         result = rescue.execute_refund(refund_details, doge_payment)
 
         # Verify DOGE-specific RPC was called
-        mock_client.sendtoaddress.assert_called_once_with("DTestAddress123", 4.55)
+        # mock_client.sendtoaddress.assert_called_once_with("DTestAddress123", 4.55, "Overpayment refund for doge-payment-123")
+        mock_client.sendtoaddress.assert_called_once_with(
+            "DTestAddress123", 4.55, "Overpayment refund for doge-payment-123"
+        )
         mock_client.getbalance.assert_called_once()  # Balance check
 
         # Verify successful result
@@ -3141,6 +3144,100 @@ class RefundTypeTests(unittest.TestCase):
         self.assertFalse(result["success"])
         self.assertIn("not supported for coin type", result["error"])
 
+    def test_doge_refund_amount_precision_handling(self):
+        """Test DOGE refund execution rounds amounts to 8 decimal places."""
+        from make_post_sell.lib.crypto_payment_rescue import PaymentRescue
+
+        # Create DOGE payment
+        doge_payment = MagicMock()
+        doge_payment.id = "doge-precision-123"
+        doge_payment.coin_type = "DOGE"
+        doge_payment.current_confirmations = 2
+        doge_payment.account_index = None
+
+        mock_client = MagicMock()
+        mock_client.sendtoaddress.return_value = "doge-precision-tx-123"
+        mock_client.getbalance.return_value = 100.0
+
+        rescue = PaymentRescue(self.mock_dbsession, mock_client)
+
+        # Test with high precision amount (10 decimal places)
+        refund_details = {
+            "payment_id": "doge-precision-123",
+            "refund_address": "DPrecisionTest123",
+            "refund_amount": Decimal("1.0385903528"),  # 10 decimal places
+            "fee_amount": Decimal("0.1142945472"),  # 10 decimal places
+            "reason": "Test DOGE precision",
+            "type": "overpayment",
+        }
+
+        result = rescue.execute_refund(refund_details, doge_payment)
+
+        # Should succeed
+        self.assertTrue(result["success"])
+        self.assertEqual(result["tx_hash"], "doge-precision-tx-123")
+
+        # Verify sendtoaddress was called with rounded amount (8 decimal places)
+        mock_client.sendtoaddress.assert_called_once_with(
+            "DPrecisionTest123",
+            1.03859035,  # Rounded to 8 decimal places
+            "Overpayment refund for doge-precision-123",
+        )
+
+    def test_xmr_refund_amount_precision_handling(self):
+        """Test XMR refund execution handles high precision amounts correctly."""
+        from make_post_sell.lib.crypto_payment_rescue import PaymentRescue
+
+        # Create XMR payment
+        xmr_payment = MagicMock()
+        xmr_payment.id = "xmr-precision-123"
+        xmr_payment.coin_type = "XMR"
+        xmr_payment.current_confirmations = 10
+        xmr_payment.account_index = 2
+
+        mock_client = MagicMock()
+        mock_client._call.return_value = {"tx_hash": "xmr-precision-tx-123"}
+
+        # Mock balance check
+        mock_client._call.side_effect = [
+            {"unlocked_balance": 100000000000000},  # get_balance call
+            {"tx_hash": "xmr-precision-tx-123"},  # transfer call
+        ]
+
+        rescue = PaymentRescue(self.mock_dbsession, mock_client)
+
+        # Test with high precision amount (12 decimal places for XMR)
+        refund_details = {
+            "payment_id": "xmr-precision-123",
+            "refund_address": "4XMRPrecisionTest123",
+            "refund_amount": Decimal("0.123456789123"),  # 12 decimal places
+            "fee_amount": Decimal("0.013717354347"),  # 12 decimal places
+            "reason": "Test XMR precision",
+            "type": "overpayment",
+        }
+
+        result = rescue.execute_refund(refund_details, xmr_payment)
+
+        # Should succeed
+        self.assertTrue(result["success"])
+        self.assertEqual(result["tx_hash"], "xmr-precision-tx-123")
+
+        # Verify transfer was called with amount in atomic units (piconero)
+        # 0.123456789123 XMR * 1e12 = 123456789123 piconero
+        expected_atomic_amount = 123456789123
+
+        # Check the transfer call (second call)
+        transfer_call = mock_client._call.call_args_list[1]
+        self.assertEqual(transfer_call[0][0], "transfer")  # method
+        transfer_params = transfer_call[0][1]  # params
+        self.assertEqual(
+            transfer_params["destinations"][0]["amount"], expected_atomic_amount
+        )
+        self.assertEqual(
+            transfer_params["destinations"][0]["address"], "4XMRPrecisionTest123"
+        )
+        self.assertEqual(transfer_params["account_index"], 2)
+
 
 class PaymentConfirmationOrderTests(unittest.TestCase):
     """Unit tests for proper order of operations in payment confirmation."""