diff --git a/campaign/src/lib.rs b/campaign/src/lib.rs
index a83ffc7..ad8079e 100644
--- a/campaign/src/lib.rs
+++ b/campaign/src/lib.rs
@@ -33,6 +33,7 @@ use storage::{
     storage_increment_donation_count, storage_increment_unique_donor_count,
     storage_set_total_raised,
 };
+
 use types::{
     AssetInfo, CampaignData, CampaignInitializedEvent, CampaignReport, CampaignStatus,
     CampaignStatusResponse, DashboardMetrics, DonorRecord, Error, MilestoneData, MilestoneStatus,
@@ -210,6 +211,8 @@ impl CampaignContract {
         storage_increment_asset_raised(&env, &asset_address, amount);
         increment_donor_asset_donation(&env, &donor, &asset_address, amount);
 
+        let _donor_record =
+            get_donor(&env, &donor).unwrap_or(DonorRecord::new_for(donor.clone(), asset.clone()));
         // Update donor record
         let existing_donor = get_donor(&env, &donor);
         let is_new_donor = existing_donor.is_none();
@@ -395,6 +398,9 @@ impl CampaignContract {
         let campaign =
             get_campaign(&env).unwrap_or_else(|| panic_with_error(&env, Error::NotInitialized));
 
+        let _donor_record =
+            get_donor(&env, &donor).unwrap_or_else(|| panic_with_error(&env, Error::NoDonorRecord));
+
         let mut donor_record =
             get_donor(&env, &donor).unwrap_or_else(|| panic_with_error(&env, Error::NoDonorRecord));
 
@@ -615,6 +621,17 @@ impl CampaignContract {
     }
 }
 
+/// Issue #175 – assert the current invoker is the campaign creator.
+///
+/// Reads the creator address from campaign storage and calls `require_auth()`.
+/// Panics with `Error::Unauthorized` if the campaign is not initialized;
+/// Soroban's auth framework panics if the invoker is not the creator.
+#[allow(dead_code)]
+fn require_creator(env: &Env) {
+    let campaign = get_campaign(env).unwrap_or_else(|| panic_with_error(env, Error::Unauthorized));
+    campaign.creator.require_auth();
+}
+
 /// Validates that `asset` is in the campaign's accepted list and returns the
 /// token contract address needed to construct a `token::Client`.
 fn get_token_address_for_asset(env: &Env, asset: &AssetInfo, campaign: &CampaignData) -> Address {
diff --git a/campaign/src/types.rs b/campaign/src/types.rs
index c70eac7..a98d4d4 100644
--- a/campaign/src/types.rs
+++ b/campaign/src/types.rs
@@ -1,6 +1,8 @@
 // src/types.rs
 
-use soroban_sdk::{contracterror, contracttype, Address, BytesN, Env, String, Vec};
+use soroban_sdk::{
+    contracterror, contracttype, panic_with_error, Address, BytesN, Env, String, Vec,
+};
 
 // ─── Error enum ───────────────────────────────────────────────────────────────
 
@@ -450,6 +452,9 @@ impl DonorRecord {
         }
     }
 
+    /// Apply a new donation to this record.  Returns an error string (for
+    /// debug builds) rather than panicking so the call site can choose how
+    /// to surface it.
     /// Apply a new donation to this record. Panics with `Error::Overflow` if
     /// `total_donated` or `donation_count` overflows.
     pub fn apply_donation(
@@ -463,13 +468,13 @@ impl DonorRecord {
         self.total_donated = self
             .total_donated
             .checked_add(amount)
-            .unwrap_or_else(|| env.panic_with_error(Error::Overflow));
+            .unwrap_or_else(|| panic_with_error!(&env, Error::Overflow));
         self.last_donation_time = time;
         self.last_donation_ledger = ledger;
         self.donation_count = self
             .donation_count
             .checked_add(1)
-            .unwrap_or_else(|| env.panic_with_error(Error::Overflow));
+            .unwrap_or_else(|| panic_with_error!(&env, Error::Overflow));
         self.asset = asset;
     }
 }