k_EMsgGCStorePurchaseFinalize problem

[esicuwa]

I want to create a request to purchase an item in the game, but after confirming ClientMicroTxnAuthorizeResponse , I send a request to k_EMsgGCStorePurchaseFinalize with txn_id but I don't receive a response about completing the purchase

var finalizeMsg = new ClientGCMsgProtobuf(
(uint)EGCItemMsg.k_EMsgGCStorePurchaseFinalize
);
finalizeMsg.Body.txn_id = pendingTxnId;

gameCoordinator.Send(finalizeMsg, APPID);

he response I get from ClientMicroTxnAuthorizeResponse is

=== PAYLOAD ===
Position after header: 36
Remaining bytes: 5
EResult: OK (code: 1)
Unknown byte: 0 (0x00)