Western Union — Transfer not delivered

I sent the money dated sept 11 and showing delivered to my bank account sept. 13. But as of sept. 18, the money is not yet reflecting to my account. Called thr bank several times and says there is no pending remittance as of sept. 18 and advise me to call western union. Called western union and said it was already delivered on my bank account dated sept. 13 and there is nothing that they can do.