diff --git a/content/operator/gb/index.de.md b/content/operator/gb/index.de.md
index e8ca4eb7..57573ff5 100644
--- a/content/operator/gb/index.de.md
+++ b/content/operator/gb/index.de.md
@@ -258,6 +258,10 @@ Beispielsweise ist der Isle of Wight Ranger, der nur für SWR-Verbindungen gilt,
 
 Auf einigen Routen verkehren Züge von unterschiedlichen Betreibern. Auf diesen Strecken werden unterschiedliche Anytime und Off-Peak Tickets verkauft. Diese Tickets sind nur in den Zügen des jeweiligen Betreibers gültig oder bei allen Betreibern auf der Strecke (_Any Route_). [BR Fares](https://www.brfares.com/) gibt einen Überblick über die verfügbaren Tickets pro Strecke. Advance Tickets sind stets an eine konkrete Zugverbindung gebunden.
 
+{{% highlight tip %}}
+Über die App [_Seatfrog_](https://seatfrog.com/) können für FIP 50 Tickets und Freifahrtscheine der 2. Klasse Upgrades für die 1. Klasse erworben werden. [^4]
+{{% /highlight %}}
+
 ### Online
 
 {{% booking id="caledonian-sleeper-website" subtitle="Nur Caledonian Sleeper" /%}}
@@ -385,3 +389,5 @@ Großbritannien kann auch mit Nachtzügen bereist werden:
 [^2]: [Caledonian Sleeper - Before your trip](https://www.sleeper.scot/help-support/before-your-trip/#2)
 
 [^3]: [FIP Guide Community Feedback Rover](https://discord.com/channels/1250522473188032512/1452026899705368738)
+
+[^4]: [Feedback Seatfrog](https://discord.com/channels/1250522473188032512/1456208770404323463/1459162934839345244)
diff --git a/content/operator/gb/index.en.md b/content/operator/gb/index.en.md
index 171e2839..8d021e5e 100644
--- a/content/operator/gb/index.en.md
+++ b/content/operator/gb/index.en.md
@@ -257,6 +257,10 @@ For example, the Isle of Wight Ranger covering only SWR services is valid under
 
 On some routes, trains from different operators run. Different Anytime and Off-Peak Tickets are sold for these routes. These tickets are only valid on the respective operator's trains or on all operators on the route (_Any Route_). [BR Fares](https://www.brfares.com/) provides an overview of available tickets per route. Advance Tickets are always tied to a specific train.
 
+{{% highlight tip %}}
+Through the [_Seatfrog_](https://seatfrog.com/) app, upgrades to First Class can be purchased for FIP 50 Tickets and FIP Coupons in Second Class. [^4]
+{{% /highlight %}}
+
 ### Online
 
 {{% booking id="caledonian-sleeper-website" subtitle="Caledonian Sleeper only" /%}}
@@ -382,3 +386,5 @@ Great Britain can also be explored by night trains:
 [^2]: [Caledonian Sleeper - Before your trip](https://www.sleeper.scot/help-support/before-your-trip/#2)
 
 [^3]: [FIP Guide Community Feedback Rover](https://discord.com/channels/1250522473188032512/1452026899705368738)
+
+[^4]: [Feedback Seatfrog](https://discord.com/channels/1250522473188032512/1456208770404323463/1459162934839345244)
diff --git a/content/operator/gb/index.fr.md b/content/operator/gb/index.fr.md
index 0a2f7836..fde25d4c 100644
--- a/content/operator/gb/index.fr.md
+++ b/content/operator/gb/index.fr.md
@@ -257,6 +257,10 @@ Par exemple, le Isle of Wight Ranger couvrant uniquement les services SWR est va
 
 Sur certaines lignes, des trains de différents opérateurs circulent. Différents billets Anytime et Off-Peak sont vendus pour ces lignes. Ces billets ne sont valables que dans les trains de l’opérateur concerné ou auprès de tous les opérateurs sur la ligne (_Any Route_). [BR Fares](https://www.brfares.com/) donne un aperçu des billets disponibles par ligne. Les billets Advance sont toujours liés à un train précis.
 
+{{% highlight tip %}}
+Via l’application [_Seatfrog_](https://seatfrog.com/), il est possible d’acheter des surclassements en première classe pour les Billets FIP 50 et Coupons FIP de 2ᵉ classe. [^4]
+{{% /highlight %}}
+
 ### En ligne
 
 {{% booking id="caledonian-sleeper-website" subtitle="Uniquement Caledonian Sleeper" /%}}
@@ -382,3 +386,5 @@ Le Royaume-Uni peut aussi être parcouru en trains de nuit :
 [^2]: [Caledonian Sleeper - Avant votre voyage](https://www.sleeper.scot/help-support/before-your-trip/#2)
 
 [^3]: [Retour d’expérience Rover sur la communauté FIP Guide](https://discord.com/channels/1250522473188032512/1452026899705368738)
+
+[^4] : [Retour d’expérience Seatfrog](https://discord.com/channels/1250522473188032512/1456208770404323463/1459162934839345244)