diff --git a/packages/sdk/src/core/account.service.ts b/packages/sdk/src/core/account.service.ts
index cb1a745..06ddd9a 100644
--- a/packages/sdk/src/core/account.service.ts
+++ b/packages/sdk/src/core/account.service.ts
@@ -24,11 +24,11 @@ import { EventError } from "../errors/events.error.js";
 
 type AccountServiceConfig =
   | {
-      mnemonic: string;
-    }
+    mnemonic: string;
+  }
   | {
-      account: PrivacyPoolAccount;
-    };
+    account: PrivacyPoolAccount;
+  };
 
 /**
  * Service responsible for managing privacy pool accounts and their associated commitments.
@@ -781,11 +781,11 @@ export class AccountService {
     dataService: DataService,
     source:
       | {
-          mnemonic: string;
-        }
+        mnemonic: string;
+      }
       | {
-          service: AccountService;
-        },
+        service: AccountService;
+      },
     pools: PoolInfo[]
   ): Promise<{ account: AccountService; errors: PoolEventsError[] }> {
     // Log the start of the history retrieval process
@@ -876,7 +876,9 @@ export class AccountService {
         // Create a map of deposits by precommitment for efficient lookup
         const depositMap = new Map<Hash, DepositEvent>();
         for (const deposit of deposits) {
-          depositMap.set(deposit.precommitment, deposit);
+          if (!depositMap.has(deposit.precommitment)) {
+            depositMap.set(deposit.precommitment, deposit);
+          }
         }
 
         // Track found deposits for logging and debugging
diff --git a/packages/sdk/src/core/data.service.ts b/packages/sdk/src/core/data.service.ts
index 9ed9516..f009af7 100644
--- a/packages/sdk/src/core/data.service.ts
+++ b/packages/sdk/src/core/data.service.ts
@@ -104,7 +104,7 @@ export class DataService {
             _merkleRoot: precommitment,
           } = log.args;
 
-          if (!depositor || !commitment || !label || !value || !precommitment || !log.blockNumber || !log.transactionHash) {
+          if (!depositor || !commitment || !label || !precommitment || !log.blockNumber || !log.transactionHash) {
             throw DataError.invalidLog("deposit", "missing required fields");
           }
 
@@ -112,7 +112,7 @@ export class DataService {
             depositor: depositor.toLowerCase(),
             commitment: commitment as Hash,
             label: label as Hash,
-            value,
+            value: value || BigInt(0),
             precommitment: precommitment as Hash,
             blockNumber: BigInt(log.blockNumber),
             transactionHash: log.transactionHash,