diff --git a/contracts/price-oracle/src/callbacks.rs b/contracts/price-oracle/src/callbacks.rs
index 7d27591..62abf38 100644
--- a/contracts/price-oracle/src/callbacks.rs
+++ b/contracts/price-oracle/src/callbacks.rs
@@ -1,3 +1,5 @@
+use soroban_sdk::{Address, Env, Symbol, Vec};
+use alloc::string::ToString;
 use soroban_sdk::{Address, Env, Symbol, Vec, IntoVal};
 
 use crate::types::{DataKey, PriceUpdatePayload};
@@ -23,6 +25,7 @@ pub fn subscribe(env: &Env, callback_contract: Address) -> Result<(), crate::Err
 
     // Check if already subscribed
     if subscribers.iter().any(|sub| sub == callback_contract) {
+        return Err("Contract is already subscribed".to_string());
         return Err(crate::Error::AlreadyInitialized);
     }
 
@@ -109,6 +112,7 @@ fn try_invoke_callback(env: &Env, callback_contract: &Address, payload: &PriceUp
     env.invoke_contract::<()>(
         callback_contract,
         &Symbol::new(env, "on_price_update"),
+        soroban_sdk::vec![env, payload.clone()],
         soroban_sdk::vec![env, payload.into_val(env)],
     );
     Ok(())
@@ -139,6 +143,7 @@ mod tests {
         // Verify both are in the list
         let subscribers = get_subscribers(&env);
         assert!(subscribers.iter().any(|s| s == contract1));
+        assert!(subscribers.iter().any(|s| s == &contract2));
         assert!(subscribers.iter().any(|s| s == contract2));
     }
 
diff --git a/contracts/price-oracle/src/lib.rs b/contracts/price-oracle/src/lib.rs
index f36c9c7..5a07eb1 100644
--- a/contracts/price-oracle/src/lib.rs
+++ b/contracts/price-oracle/src/lib.rs
@@ -1332,6 +1332,11 @@ impl PriceOracle {
         };
         callbacks::notify_subscribers(&env, &payload);
 
+        // Automatically extend the storage lifetime of the relayer's profile
+        // after successful price update submission
+        env.storage().persistent().extend_ttl(&crate::auth::DataKey::Provider(source.clone()), 10000);
+        env.storage().persistent().extend_ttl(&crate::auth::DataKey::ProviderWeight(source.clone()), 10000);
+
         Ok(())
     }
 
diff --git a/contracts/price-oracle/test_ttl_extension.rs b/contracts/price-oracle/test_ttl_extension.rs
new file mode 100644
index 0000000..f17c637
--- /dev/null
+++ b/contracts/price-oracle/test_ttl_extension.rs
@@ -0,0 +1,47 @@
+#[cfg(test)]
+mod ttl_extension_tests {
+    use super::*;
+    use soroban_sdk::testutils::Address as _;
+
+    #[test]
+    fn test_update_price_extends_relayer_ttl() {
+        let env = Env::default();
+        let contract_id = env.register(PriceOracle, ());
+        
+        let admin = Address::generate(&env);
+        let relayer = Address::generate(&env);
+        let asset = Symbol::new(&env, "BTC");
+        
+        env.as_contract(&contract_id, || {
+            // Initialize contract
+            let assets = soroban_sdk::vec![&env, asset.clone()];
+            PriceOracle::initialize(env.clone(), admin.clone(), assets);
+            
+            // Add relayer to whitelist
+            crate::auth::_add_provider(&env, &relayer);
+            
+            // Add asset
+            PriceOracle::add_asset(env.clone(), admin.clone(), asset.clone()).unwrap();
+            
+            // Verify relayer is stored
+            assert!(crate::auth::_is_provider(&env, &relayer));
+            
+            // Call update_price which should extend TTL
+            let result = PriceOracle::update_price(
+                env.clone(),
+                relayer.clone(),
+                asset.clone(),
+                50000_i128,  // price
+                7,           // decimals
+                100,         // confidence_score
+                3600,        // ttl
+            );
+            
+            // The update should succeed
+            assert!(result.is_ok());
+            
+            // The relayer should still be whitelisted (TTL extended)
+            assert!(crate::auth::_is_provider(&env, &relayer));
+        });
+    }
+}