diff --git a/apier/v1/cdrs_it_test.go b/apier/v1/cdrs_it_test.go
index 8e2102d5c..7a957b56a 100644
--- a/apier/v1/cdrs_it_test.go
+++ b/apier/v1/cdrs_it_test.go
@@ -237,12 +237,11 @@ func testV1CDRsProcessEventWithRefund(t *testing.T) {
 	}
 	if err := cdrsRpc.Call(utils.APIerSv2GetAccount, acntAttrs, &acnt); err != nil {
 		t.Error(err)
-	} else if blc1 := acnt.GetBalanceWithID(utils.MetaVoice, "BALANCE1"); blc1.Value != 120000000000 { // refund is done after debit
+	} else if blc1 := acnt.GetBalanceWithID(utils.MetaVoice, "BALANCE1"); blc1.Value != 60000000000 {
 		t.Errorf("Balance1 is: %s", utils.ToIJSON(blc1))
-	} else if blc2 := acnt.GetBalanceWithID(utils.MetaVoice, "BALANCE2"); blc2.Value != 120000000000 {
+	} else if blc2 := acnt.GetBalanceWithID(utils.MetaVoice, "BALANCE2"); blc2.Value != 180000000000 {
 		t.Errorf("Balance2 is: %s", utils.ToIJSON(blc2))
 	}
-	return
 }
 
 func testV1CDRsRefundOutOfSessionCost(t *testing.T) {
diff --git a/engine/cdrs.go b/engine/cdrs.go
index 8665426d2..64a6a0583 100644
--- a/engine/cdrs.go
+++ b/engine/cdrs.go
@@ -439,6 +439,9 @@ func (cdrS *CDRServer) eeSProcessEvent(cgrEv *CGREventWithEeIDs) (err error) {
 // in case of partially executed, both error and evs will be returned
 func (cdrS *CDRServer) processEvents(evs []*utils.CGREvent,
 	chrgS, attrS, refund, ralS, store, reRate, export, thdS, stS bool) (outEvs []*utils.EventWithFlags, err error) {
+	if reRate {
+		refund = true
+	}
 	if attrS {
 		for _, ev := range evs {
 			if err = cdrS.attrSProcessEvent(ev); err != nil {
@@ -513,6 +516,18 @@ func (cdrS *CDRServer) processEvents(evs []*utils.CGREvent,
 	}
 	if refund {
 		for i, cdr := range cdrs {
+			if cdr.CostDetails == nil { // if CostDetails is not populated, look for it inside the previously stored cdr
+				var prevCDRs []*CDR // only one should be returned
+				if prevCDRs, _, err = cdrS.cdrDb.GetCDRs(
+					&utils.CDRsFilter{CGRIDs: []string{cdr.CGRID},
+						RunIDs: []string{cdr.RunID}}, false); err != nil {
+					utils.Logger.Info(
+						fmt.Sprintf("<%s> could not retrieve previously stored CDR, error: <%s>",
+							utils.CDRs, err.Error()))
+					continue
+				}
+				cdr.CostDetails = prevCDRs[0].CostDetails
+			}
 			if rfnd, errRfd := cdrS.refundEventCost(cdr.CostDetails,
 				cdr.RequestType, cdr.ToR); errRfd != nil {
 				utils.Logger.Warning(
@@ -1088,7 +1103,7 @@ func (cdrS *CDRServer) V1RateCDRs(arg *ArgRateCDRs, reply *string) (err error) {
 		cgrEvs[i] = cdr.AsCGREvent()
 		cgrEvs[i].APIOpts = arg.APIOpts
 	}
-	if _, err = cdrS.processEvents(cgrEvs, chrgS, attrS, true,
+	if _, err = cdrS.processEvents(cgrEvs, chrgS, attrS, false,
 		true, store, true, export, thdS, statS); err != nil {
 		return utils.NewErrServerError(err)
 	}