diff --git a/services/static-webserver/client/source/class/osparc/desktop/credits/AutoRecharge.js b/services/static-webserver/client/source/class/osparc/desktop/credits/AutoRecharge.js
index c91a52d116a..079c5f1278d 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/credits/AutoRecharge.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/credits/AutoRecharge.js
@@ -24,9 +24,9 @@ qx.Class.define("osparc.desktop.credits.AutoRecharge", {
     this._setLayout(new qx.ui.layout.VBox(15));
 
     const store = osparc.store.Store.getInstance();
-    const wallet = store.getWallets().find(wallet => wallet.getWalletId() == walletId);
+    const wallet = store.getWallets().find(w => w.getWalletId() == walletId);
     this.__buildLayout();
-    this.setWallet(wallet)
+    this.setWallet(wallet);
   },
 
   properties: {
diff --git a/services/static-webserver/client/source/class/osparc/desktop/credits/BillingCenter.js b/services/static-webserver/client/source/class/osparc/desktop/credits/BillingCenter.js
index 486bb42abce..456b9c4a447 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/credits/BillingCenter.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/credits/BillingCenter.js
@@ -108,7 +108,9 @@ qx.Class.define("osparc.desktop.credits.BillingCenter", {
       const page = new osparc.desktop.preferences.pages.BasePage(title, iconSrc);
       page.showLabelOnTab();
       this.__paymentMethods = new osparc.desktop.paymentMethods.PaymentMethods();
-      page.add(this.__paymentMethods, { flex: 1 });
+      page.add(this.__paymentMethods, {
+        flex: 1
+      });
       return page;
     },
 
@@ -121,7 +123,7 @@ qx.Class.define("osparc.desktop.credits.BillingCenter", {
       buyCredits.set({
         margin: 10
       });
-      buyCredits.addListener("addNewPaymentMethod", () => this.__openPaymentMethods(true), this);
+      buyCredits.addListener("addNewPaymentMethod", () => this.openPaymentMethods(true), this);
       buyCredits.addListener("transactionCompleted", () => this.__openTransactions(true), this);
       page.add(buyCredits);
       return page;
@@ -172,20 +174,20 @@ qx.Class.define("osparc.desktop.credits.BillingCenter", {
       if (this.__paymentMethods) {
         const paymentMethods = this.__paymentMethods.getPaymentMethods();
         const buyView = new osparc.desktop.credits.BuyCreditsStepper(
-          paymentMethods.map(({ idr, cardHolderName, cardNumberMasked }) => ({
+          paymentMethods.map(({idr, cardHolderName, cardNumberMasked}) => ({
             label: `${cardHolderName} ${cardNumberMasked}`,
             id: idr
           }))
-        )
+        );
         const win = osparc.ui.window.Window.popUpInWindow(buyView, "Buy credits", 400, 550).set({
           resizable: false,
           movable: false
-        })
+        });
         buyView.addListener("completed", () => win.close());
       }
     },
 
-    __openPaymentMethods: function() {
+    openPaymentMethods: function() {
       this.__openPage(this.__paymentMethodsPage);
     },
 
@@ -200,6 +202,6 @@ qx.Class.define("osparc.desktop.credits.BillingCenter", {
 
     __openUsage: function() {
       this.__openPage(this.__usagePage);
-    },
+    }
   }
 });
diff --git a/services/static-webserver/client/source/class/osparc/desktop/credits/BillingCenterWindow.js b/services/static-webserver/client/source/class/osparc/desktop/credits/BillingCenterWindow.js
index 96840bb1d56..24318bd38c6 100644
--- a/services/static-webserver/client/source/class/osparc/desktop/credits/BillingCenterWindow.js
+++ b/services/static-webserver/client/source/class/osparc/desktop/credits/BillingCenterWindow.js
@@ -57,7 +57,7 @@ qx.Class.define("osparc.desktop.credits.BillingCenterWindow", {
     },
 
     openPaymentMethods: function() {
-      this.__billingCenter.__openPaymentMethods();
+      this.__billingCenter.openPaymentMethods();
     },
 
     openTransactions: function() {