diff --git a/LMEMappeCatastaliApp.csproj b/LMEMappeCatastaliApp.csproj
index 8aaea34..e58d34a 100644
--- a/LMEMappeCatastaliApp.csproj
+++ b/LMEMappeCatastaliApp.csproj
@@ -28,8 +28,8 @@
         <ApplicationId>it.liviomerola.lmemappecatastali.pro</ApplicationId>
 
         <!-- Versions -->
-        <ApplicationDisplayVersion>1.0.7</ApplicationDisplayVersion>
-        <ApplicationVersion>107</ApplicationVersion>
+        <ApplicationDisplayVersion>1.0.8</ApplicationDisplayVersion>
+        <ApplicationVersion>108</ApplicationVersion>
         <Version>$(ApplicationDisplayVersion)</Version>
 
         <!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->
diff --git a/PLAY_STORE_PRO_CHECKLIST.md b/PLAY_STORE_PRO_CHECKLIST.md
index 0a2fd46..00c34fa 100644
--- a/PLAY_STORE_PRO_CHECKLIST.md
+++ b/PLAY_STORE_PRO_CHECKLIST.md
@@ -4,7 +4,7 @@
 
 - Nome: LME Mappe Catastali Pro.
 - Package name Android: `it.liviomerola.lmemappecatastali.pro`.
-- Versione corrente da pubblicare: `1.0.7` / version code `107`.
+- Versione corrente da pubblicare: `1.0.8` / version code `108`.
 - Formato Release Android: Android App Bundle (`.aab`).
 - Target SDK Release: Android 16 / API 36.
 
diff --git a/Platforms/Android/AndroidPlayBillingService.cs b/Platforms/Android/AndroidPlayBillingService.cs
index 48e34bb..cf7bc97 100644
--- a/Platforms/Android/AndroidPlayBillingService.cs
+++ b/Platforms/Android/AndroidPlayBillingService.cs
@@ -9,6 +9,7 @@ public sealed class AndroidPlayBillingService : Java.Lang.Object, IPlayBillingSe
     private readonly SemaphoreSlim _connectionLock = new(1, 1);
     private readonly BillingClient _client;
     private TaskCompletionSource<PlayBillingResult>? _purchaseCompletion;
+    private string? _lastCatalogFailure;
 
     public AndroidPlayBillingService()
     {
@@ -31,7 +32,12 @@ public sealed class AndroidPlayBillingService : Java.Lang.Object, IPlayBillingSe
         {
             var details = await GetProductDetailsAsync(cancellationToken);
             return details?.GetSubscriptionOfferDetails()?
-                .Where(item => string.IsNullOrEmpty(item.OfferId))
+                .Where(item => !string.IsNullOrWhiteSpace(item.BasePlanId)
+                    && !string.IsNullOrWhiteSpace(item.OfferToken))
+                .GroupBy(item => item.BasePlanId, StringComparer.Ordinal)
+                .Select(group => group
+                    .OrderBy(item => string.IsNullOrEmpty(item.OfferId) ? 0 : 1)
+                    .First())
                 .Select(item =>
                 {
                     var phase = item.PricingPhases.PricingPhaseList.LastOrDefault();
@@ -99,13 +105,25 @@ public sealed class AndroidPlayBillingService : Java.Lang.Object, IPlayBillingSe
 
             var details = await GetProductDetailsAsync(cancellationToken);
             var offer = details?.GetSubscriptionOfferDetails()?
-                .FirstOrDefault(item => item.BasePlanId == basePlanId
-                    && string.IsNullOrEmpty(item.OfferId)
-                    && !string.IsNullOrWhiteSpace(item.OfferToken));
-            if (details is null || offer is null)
+                .Where(item => item.BasePlanId == basePlanId
+                    && !string.IsNullOrWhiteSpace(item.OfferToken))
+                .OrderBy(item => string.IsNullOrEmpty(item.OfferId) ? 0 : 1)
+                .FirstOrDefault();
+            if (details is null)
             {
-                return PlayBillingResult.Failed(
-                    $"Piano {basePlanId} non disponibile su Google Play. Verifica che l'abbonamento lme_pro e il piano siano attivi per il tuo Paese.");
+                return PlayBillingResult.Failed(_lastCatalogFailure
+                    ?? "Google Play non ha restituito l'abbonamento lme_pro.");
+            }
+
+            if (offer is null)
+            {
+                var availablePlans = string.Join(", ", details.GetSubscriptionOfferDetails()?
+                    .Select(item => item.BasePlanId)
+                    .Where(item => !string.IsNullOrWhiteSpace(item))
+                    .Distinct(StringComparer.Ordinal) ?? []);
+                return PlayBillingResult.Failed(string.IsNullOrWhiteSpace(availablePlans)
+                    ? $"Google Play ha restituito lme_pro senza offerte acquistabili per il piano {basePlanId}."
+                    : $"Piano {basePlanId} non restituito da Google Play. Piani ricevuti: {availablePlans}.");
             }
 
             var productParams = BillingFlowParams.ProductDetailsParams.NewBuilder()
@@ -191,7 +209,18 @@ public sealed class AndroidPlayBillingService : Java.Lang.Object, IPlayBillingSe
             throw new InvalidOperationException(ToMessage(result.Result));
         }
 
-        return result.ProductDetailsList?.FirstOrDefault();
+        var details = result.ProductDetailsList?.FirstOrDefault();
+        if (details is not null)
+        {
+            _lastCatalogFailure = null;
+            return details;
+        }
+
+        var unfetched = result.UnfetchedProductList?.FirstOrDefault();
+        _lastCatalogFailure = unfetched is null
+            ? "Google Play ha restituito un catalogo vuoto per lme_pro. Verifica account Play Store, adesione al test e origine dell'installazione."
+            : $"Google Play non ha caricato lme_pro (codice catalogo {unfetched.StatusCodeValue}).";
+        return null;
     }
 
     private async Task EnsureConnectedAsync(CancellationToken cancellationToken)
diff --git a/README.md b/README.md
index 258dc45..df06fb0 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,11 @@ App .NET MAUI Blazor Hybrid per Android, iOS, Mac Catalyst e Windows, pensata pe
 
 Informativa privacy: [PRIVACY_POLICY.md](PRIVACY_POLICY.md).
 
+## Versione Pro 1.0.8 test
+
+- Google Play Billing accetta tutte le offerte idonee restituite per i piani `monthly` e `yearly`, preferendo il piano base quando disponibile.
+- In caso di catalogo vuoto o prodotto non caricato, il messaggio mostra una diagnostica specifica restituita da Google Play.
+
 ## Versione Pro 1.0.7 test
 
 - I messaggi informativi su telefono vengono mostrati sopra i controlli zoom e possono occupare fino a tre righe senza sovrapporsi.