Disappointed customer

To be honest I am very disappointed in Telkom I app**** online today contacted by a consultant and confirmed I qualified and I will receive my device in the next three to five working days. Next I receive a message that we apologize to inform you that the application was not successful so you tell me what should I do as a loyal customer. This is unfair can't I sue them for misleading me and also all my effort of trying to get this I am deeply saddened.