diff --git a/Website/main.py b/Website/main.py
index 5c73a61..37b955b 100644
--- a/Website/main.py
+++ b/Website/main.py
@@ -1972,7 +1972,7 @@ def preise():
 @app.route('/preise/book-option', methods=['POST'])
 @login_required
 def book_option_package():
-    # Unterstützt "packages" (Warenkorb) und Fallback auf "package" (altes Formular)
+    # Supports comma-separated multi-item selection ("packages") and fallback ("package")
     packages_raw = _sanitize_text(request.form.get("packages") or request.form.get("package") or "", 200).lower()
     booking_flow = _sanitize_text(request.form.get("flow") or "payment", 24).lower()
     
@@ -1989,7 +1989,7 @@ def book_option_package():
 @app.route('/booking/payment', methods=['GET', 'POST'])
 @login_required
 def booking_payment():
-    # Hole kommagetrennte Liste (z. B. "inventarsystem,terminverwaltung")
+    # Accepts single or comma-separated packages (e.g. "inventarsystem,terminverwaltung,emailversand")
     packages_str = _sanitize_text(request.values.get("packages") or request.values.get("package") or "", 200).lower()
     booking_flow = _sanitize_text(request.values.get("flow") or "payment", 24).lower()
     
@@ -2002,7 +2002,7 @@ def booking_payment():
 
     package_list = [p.strip() for p in packages_str.split(',') if p.strip()]
     
-    # Validiere Pakete, sammle Namen und berechne Gesamtpreis
+    # Validate each selected article, accumulate labels and total price
     selected_package_names = []
     total_price = 0.0
     for pkg in package_list:
@@ -2014,9 +2014,9 @@ def booking_payment():
             flash(f"Ungültige Buchungsoption: {pkg}", "error")
             return redirect(url_for("preise"))
             
-    # Zusammengefasster String für Frontend und Datenbank (z.B. "Inventarsystem, Terminplaner")
+    # Formatted display string (e.g., "Inventarsystem, Terminplaner")
     selected_package = ", ".join(selected_package_names)
-    package_raw = packages_str # Speichert alle raw-keys für DB
+    package_raw = packages_str  # Stores raw keys in DB
 
     flow_config = BOOKING_FLOW_MAP[booking_flow]
     
@@ -2051,7 +2051,7 @@ def booking_payment():
     if request.method == "GET":
         return render_template("schnell_buchung.html", **review_data)
 
-    # --- POST Logik & Validierung ---
+    # --- POST Logic & Validation ---
     required_fields = {
         "contact_person": "Ansprechpartner",
         "school_name": "Schule/Einrichtung",
@@ -2101,7 +2101,7 @@ def booking_payment():
                     "message": message,
                     "created_at": _utc_now_iso(),
                     "booking_flow": booking_flow,
-                    "booking_package": package_raw, # Hier steht nun z.B. "inventarsystem,terminverwaltung"
+                    "booking_package": package_raw,
                     "booking_data": form_data,
                 }
             )
@@ -2113,7 +2113,7 @@ def booking_payment():
             base = _slugify_subdomain(raw_base).lower()[:51]
 
             try:
-                existing = steering.instace.list() or []
+                existing = steering.instance.list() or []
             except Exception:
                 existing = []
 
@@ -2125,11 +2125,11 @@ def booking_payment():
             provision_status = "not_started"
             provision_port = None
             provision_error = ""
-            provision_config_ok = True # Startet mit True, wird False wenn ein Modul fehlschlägt
+            provision_config_ok = True
 
             try:
                 try:
-                    port = steering.instace.new(subdomain)
+                    port = steering.instance.new(subdomain)
                 except Exception as e:
                     port = False
                     provision_error = str(e)
@@ -2142,18 +2142,14 @@ def booking_payment():
                     except Exception:
                         provision_port = port
 
-                    # Multi-Modul-Konfiguration: Startpaket wird in Inventar + Bücherei aufgeschlüsselt
-                    modules_to_provision = set()
-                    for pkg in package_list:
-                        if pkg == "startpaket":
-                            modules_to_provision.update(["inventarsystem", "buecherei"])
-                        elif pkg in {"inventarsystem", "buecherei", "terminverwaltung", "emailversand", "starter", "advanced"}:
-                            modules_to_provision.add(pkg)
+                    # Dynamically collect all valid requested modules for multi-article provisioning
+                    valid_modules = {"inventarsystem", "buecherei", "terminverwaltung", "emailversand", "starter", "advanced"}
+                    modules_to_provision = {pkg for pkg in package_list if pkg in valid_modules}
                     
-                    # Einzelne Module in der erstellten Instanz editieren/aktivieren
+                    # Provision/enable each selected module on the newly created instance
                     for mod in modules_to_provision:
                         try:
-                            edit_ok = steering.instace.edit(subdomain, mod)
+                            edit_ok = steering.instance.edit(subdomain, mod)
                             if not edit_ok:
                                 provision_config_ok = False
                                 provision_error += f" | Edit failed for {mod}"
diff --git a/Website/templates/preise.html b/Website/templates/preise.html
index 84db49c..ba5cfd0 100644
--- a/Website/templates/preise.html
+++ b/Website/templates/preise.html
@@ -300,7 +300,7 @@
 </div>
 
 <!-- Upsell Modal -->
-<div class="custom-modal" id="upsellModal" aria-hidden="true" role="dialog">
+<!-- <div class="custom-modal" id="upsellModal" aria-hidden="true" role="dialog">
     <div class="custom-modal-backdrop" onclick="closeUpsellModal()"></div>
     <div class="custom-modal-content">
         <h3>Tipp: Sparen Sie mit dem Startpaket!</h3>
@@ -316,7 +316,7 @@
             <button class="btn" type="button" onclick="acceptUpsell()">Zum Startpaket upgraden</button>
         </div>
     </div>
-</div>
+</div>-->
 
 <!-- Cart Modal -->
 <div class="custom-modal" id="cartModal" aria-hidden="true" role="dialog">