diff --git a/controllers/keysend.ctrl.go b/controllers/keysend.ctrl.go
index 1ae22a9..9ce3d52 100644
--- a/controllers/keysend.ctrl.go
+++ b/controllers/keysend.ctrl.go
@@ -82,7 +82,7 @@ func (controller *KeySendController) KeySend(c echo.Context) error {
 		})
 	}
 
-	ok, err := controller.svc.BalanceCheck(c.Request().Context(), lnPayReq, userID)
+	resp, err := controller.svc.CheckPaymentAllowed(c.Request().Context(), lnPayReq, userID)
 	if err != nil {
 		c.Logger().Errorj(
 			log.JSON{
@@ -93,7 +93,7 @@ func (controller *KeySendController) KeySend(c echo.Context) error {
 		)
 		return c.JSON(http.StatusBadRequest, responses.BadArgumentsError)
 	}
-	if !ok {
+	if resp != nil {
 		c.Logger().Errorf("User does not have enough balance user_id:%v amount:%v", userID, lnPayReq.PayReq.NumSatoshis)
 		return c.JSON(http.StatusBadRequest, responses.NotEnoughBalanceError)
 	}
diff --git a/controllers/payinvoice.ctrl.go b/controllers/payinvoice.ctrl.go
index 69bc67e..2a67c72 100644
--- a/controllers/payinvoice.ctrl.go
+++ b/controllers/payinvoice.ctrl.go
@@ -97,7 +97,7 @@ func (controller *PayInvoiceController) PayInvoice(c echo.Context) error {
 		}
 	}
 
-	ok, err := controller.svc.BalanceCheck(c.Request().Context(), lnPayReq, userID)
+	resp, err := controller.svc.CheckPaymentAllowed(c.Request().Context(), lnPayReq, userID)
 	if err != nil {
 		c.Logger().Errorj(
 			log.JSON{
@@ -108,7 +108,7 @@ func (controller *PayInvoiceController) PayInvoice(c echo.Context) error {
 		)
 		return c.JSON(http.StatusBadRequest, responses.GeneralServerError)
 	}
-	if !ok {
+	if resp != nil {
 		c.Logger().Errorf("User does not have enough balance user_id:%v amount:%v", userID, lnPayReq.PayReq.NumSatoshis)
 		return c.JSON(http.StatusBadRequest, responses.NotEnoughBalanceError)
 	}
diff --git a/controllers_v2/keysend.ctrl.go b/controllers_v2/keysend.ctrl.go
index b2f4524..fd8229d 100644
--- a/controllers_v2/keysend.ctrl.go
+++ b/controllers_v2/keysend.ctrl.go
@@ -171,12 +171,12 @@ func (controller *KeySendController) SingleKeySend(c echo.Context, reqBody *KeyS
 			HttpStatusCode: 400,
 		}
 	}
-	ok, err := controller.svc.BalanceCheck(c.Request().Context(), lnPayReq, userID)
+	resp, err := controller.svc.CheckPaymentAllowed(c.Request().Context(), lnPayReq, userID)
 	if err != nil {
 		controller.svc.Logger.Error(err)
 		return nil, &responses.GeneralServerError
 	}
-	if !ok {
+	if resp != nil {
 		c.Logger().Errorf("User does not have enough balance user_id:%v amount:%v", userID, lnPayReq.PayReq.NumSatoshis)
 		return nil, &responses.NotEnoughBalanceError
 	}
diff --git a/controllers_v2/payinvoice.ctrl.go b/controllers_v2/payinvoice.ctrl.go
index 1724e81..473eff5 100644
--- a/controllers_v2/payinvoice.ctrl.go
+++ b/controllers_v2/payinvoice.ctrl.go
@@ -98,7 +98,7 @@ func (controller *PayInvoiceController) PayInvoice(c echo.Context) error {
 		}
 		lnPayReq.PayReq.NumSatoshis = amt
 	}
-	ok, err := controller.svc.BalanceCheck(c.Request().Context(), lnPayReq, userID)
+	resp, err := controller.svc.CheckPaymentAllowed(c.Request().Context(), lnPayReq, userID)
 	if err != nil {
 		c.Logger().Errorj(
 			log.JSON{
@@ -109,7 +109,7 @@ func (controller *PayInvoiceController) PayInvoice(c echo.Context) error {
 		)
 		return err
 	}
-	if !ok {
+	if resp != nil {
 		c.Logger().Errorf("User does not have enough balance user_id:%v amount:%v", userID, lnPayReq.PayReq.NumSatoshis)
 		return c.JSON(http.StatusInternalServerError, responses.NotEnoughBalanceError)
 	}
diff --git a/lib/responses/errors.go b/lib/responses/errors.go
index 5a293fd..d8126ea 100644
--- a/lib/responses/errors.go
+++ b/lib/responses/errors.go
@@ -64,6 +64,13 @@ var NotEnoughBalanceError = ErrorResponse{
 	HttpStatusCode: 400,
 }
 
+var TooMuchVolumeError = ErrorResponse{
+	Error:          true,
+	Code:           2,
+	Message:        "transaction volume too high. please contact support for further assistance.",
+	HttpStatusCode: 400,
+}
+
 var AccountDeactivatedError = ErrorResponse{
 	Error:          true,
 	Code:           1,
diff --git a/lib/service/user.go b/lib/service/user.go
index a1e9a75..4614595 100644
--- a/lib/service/user.go
+++ b/lib/service/user.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/getAlby/lndhub.go/common"
 	"github.com/getAlby/lndhub.go/db/models"
+	"github.com/getAlby/lndhub.go/lib/responses"
 	"github.com/getAlby/lndhub.go/lib/security"
 	"github.com/getAlby/lndhub.go/lnd"
 	"github.com/uptrace/bun"
@@ -121,17 +122,20 @@ func (svc *LndhubService) FindUserByLogin(ctx context.Context, login string) (*m
 	return &user, nil
 }
 
-func (svc *LndhubService) BalanceCheck(ctx context.Context, lnpayReq *lnd.LNPayReq, userId int64) (ok bool, err error) {
+func (svc *LndhubService) CheckPaymentAllowed(ctx context.Context, lnpayReq *lnd.LNPayReq, userId int64) (result *responses.ErrorResponse, err error) {
 	currentBalance, err := svc.CurrentUserBalance(ctx, userId)
 	if err != nil {
-		return false, err
+		return nil, err
 	}
 
 	minimumBalance := lnpayReq.PayReq.NumSatoshis
 	if svc.Config.FeeReserve {
 		minimumBalance += svc.CalcFeeLimit(lnpayReq.PayReq.Destination, lnpayReq.PayReq.NumSatoshis)
 	}
-	return currentBalance >= minimumBalance, nil
+	if currentBalance >= minimumBalance {
+		return &responses.NotEnoughBalanceError, nil
+	}
+	return nil, nil
 }
 
 func (svc *LndhubService) CalcFeeLimit(destination string, amount int64) int64 {