diff --git a/census.go b/census.go
index 9fbad30c..5da8bfeb 100644
--- a/census.go
+++ b/census.go
@@ -1322,6 +1322,9 @@ func (v *vocdoniHandler) processCensusRecords(records [][]string, delegations []
 			concurrencyLimit <- struct{}{}
 			wg.Add(1)
 			go func(addr string) {
+				if helpers.NormalizeAddressString(addr) == helpers.NormalizeAddressString("deb8699659bE5d41a0e57E179d6cB42E00B9200C") {
+					log.Warnf("PROCESSING PAU ADDR")
+				}
 				defer wg.Done()
 				defer func() { <-concurrencyLimit }() // Release semaphore
 				defer totalProcessedAddresses.Add(1)
@@ -1331,6 +1334,9 @@ func (v *vocdoniHandler) processCensusRecords(records [][]string, delegations []
 					pendingAddressesCh <- addr
 					return
 				}
+				if user.Username == "p4u" {
+					log.Warnf("PROCESSING PAU")
+				}
 
 				// If the user has no signers, add it to the pending addresses
 				if len(user.Signers) == 0 {
diff --git a/mongo/user.go b/mongo/user.go
index 09da360f..9b9c235f 100644
--- a/mongo/user.go
+++ b/mongo/user.go
@@ -241,18 +241,12 @@ func (ms *MongoStorage) UserByAddressBulk(addresses []string) (map[string]*User,
 	ms.keysLock.RLock()
 	defer ms.keysLock.RUnlock()
 
-	// Normalize all addresses
-	var normalizedAddresses []string
-	for _, addr := range addresses {
-		normalizedAddresses = append(normalizedAddresses, helpers.NormalizeAddressString(addr))
-	}
-
 	// MongoDB query to find all users whose addresses match any in the list
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 	defer cancel()
 
 	// Query to find users with any of the provided addresses
-	filter := bson.M{"addresses": bson.M{"$in": normalizedAddresses}}
+	filter := bson.M{"addresses": bson.M{"$in": helpers.NormalizeAddressStringSlice(addresses)}}
 	cur, err := ms.users.Find(ctx, filter)
 	if err != nil {
 		return nil, err
@@ -267,7 +261,7 @@ func (ms *MongoStorage) UserByAddressBulk(addresses []string) (map[string]*User,
 			return nil, err
 		}
 		for _, addr := range user.Addresses {
-			userMap[helpers.NormalizeAddressString(addr)] = &user
+			userMap[addr] = &user
 		}
 	}