diff --git a/cmd/cgr-loader/migrator_rc8.go b/cmd/cgr-loader/migrator_rc8.go
index c54527aaf..caca132c3 100644
--- a/cmd/cgr-loader/migrator_rc8.go
+++ b/cmd/cgr-loader/migrator_rc8.go
@@ -380,7 +380,7 @@ func (mig MigratorRC8) migrateActions() error {
 }
 
 func (mig MigratorRC8) migrateDerivedChargers() error {
-	keys, err := mig.db.Keys(utils.DERIVEDCHARGERS_PREFIX + "*")
+	keys, err := mig.db.Cmd("KEYS", utils.DERIVEDCHARGERS_PREFIX+"*").List()
 	if err != nil {
 		return err
 	}
@@ -389,7 +389,7 @@ func (mig MigratorRC8) migrateDerivedChargers() error {
 		log.Printf("Migrating derived charger: %s...", key)
 		var oldDcs []*utils.DerivedCharger
 		var values []byte
-		if values, err = mig.db.Get(key); err == nil {
+		if values, err = mig.db.Cmd("GET", key).Bytes(); err == nil {
 			if err := mig.ms.Unmarshal(values, &oldDcs); err != nil {
 				return err
 			}
@@ -406,7 +406,7 @@ func (mig MigratorRC8) migrateDerivedChargers() error {
 		if err != nil {
 			return err
 		}
-		if err = mig.db.Set(key, result); err != nil {
+		if err = mig.db.Cmd("SET", key, result).Err; err != nil {
 			return err
 		}
 	}
diff --git a/engine/account.go b/engine/account.go
index cef47a190..65c4f5ad3 100644
--- a/engine/account.go
+++ b/engine/account.go
@@ -587,6 +587,17 @@ func (acc *Account) CleanExpiredBalances() {
 	}
 }
 
+func (acc *Account) allBalancesExpired() bool {
+	for _, bm := range acc.BalanceMap {
+		for i := 0; i < len(bm); i++ {
+			if !bm[i].IsExpired() {
+				return false
+			}
+		}
+	}
+	return true
+}
+
 // returns the shared groups that this user balance belnongs to
 func (acc *Account) GetSharedGroups() (groups []string) {
 	for _, balanceChain := range acc.BalanceMap {
diff --git a/engine/storage_map.go b/engine/storage_map.go
index 47468d21b..3cc637969 100644
--- a/engine/storage_map.go
+++ b/engine/storage_map.go
@@ -468,6 +468,18 @@ func (ms *MapStorage) GetAccount(key string) (ub *Account, err error) {
 }
 
 func (ms *MapStorage) SetAccount(ub *Account) (err error) {
+	// never override existing account with an empty one
+	// UPDATE: if all balances expired and were cleaned it makes
+	// sense to write empty balance map
+	if len(ub.BalanceMap) == 0 {
+		if ac, err := ms.GetAccount(ub.Id); err == nil && !ac.allBalancesExpired() {
+			ac.ActionTriggers = ub.ActionTriggers
+			ac.UnitCounters = ub.UnitCounters
+			ac.AllowNegative = ub.AllowNegative
+			ac.Disabled = ub.Disabled
+			ub = ac
+		}
+	}
 	result, err := ms.ms.Marshal(ub)
 	ms.dict[utils.ACCOUNT_PREFIX+ub.Id] = result
 	return
diff --git a/engine/storage_mongo.go b/engine/storage_mongo.go
index b08a43ab8..599799bfc 100644
--- a/engine/storage_mongo.go
+++ b/engine/storage_mongo.go
@@ -763,6 +763,18 @@ func (ms *MongoStorage) GetAccount(key string) (result *Account, err error) {
 }
 
 func (ms *MongoStorage) SetAccount(acc *Account) error {
+	// never override existing account with an empty one
+	// UPDATE: if all balances expired and were cleaned it makes
+	// sense to write empty balance map
+	if len(acc.BalanceMap) == 0 {
+		if ac, err := ms.GetAccount(acc.Id); err == nil && !ac.allBalancesExpired() {
+			ac.ActionTriggers = acc.ActionTriggers
+			ac.UnitCounters = acc.UnitCounters
+			ac.AllowNegative = acc.AllowNegative
+			ac.Disabled = acc.Disabled
+			acc = ac
+		}
+	}
 	_, err := ms.db.C(colAcc).Upsert(bson.M{"id": acc.Id}, acc)
 	return err
 }
diff --git a/engine/storage_redis.go b/engine/storage_redis.go
index 9c85221d5..eda468131 100644
--- a/engine/storage_redis.go
+++ b/engine/storage_redis.go
@@ -620,6 +620,18 @@ func (rs *RedisStorage) GetAccount(key string) (ub *Account, err error) {
 }
 
 func (rs *RedisStorage) SetAccount(ub *Account) (err error) {
+	// never override existing account with an empty one
+	// UPDATE: if all balances expired and were cleaned it makes
+	// sense to write empty balance map
+	if len(ub.BalanceMap) == 0 {
+		if ac, err := rs.GetAccount(ub.Id); err == nil && !ac.allBalancesExpired() {
+			ac.ActionTriggers = ub.ActionTriggers
+			ac.UnitCounters = ub.UnitCounters
+			ac.AllowNegative = ub.AllowNegative
+			ac.Disabled = ub.Disabled
+			ub = ac
+		}
+	}
 	result, err := rs.ms.Marshal(ub)
 	err = rs.db.Cmd("SET", utils.ACCOUNT_PREFIX+ub.Id, result).Err
 	return