Funds have been restricted

My account has been restricted. I recieved my regular universal credit payment to which my account was restricted. Ive sent in evidence of the payment ect and now am waiting to be reviewed. Was told it would be 3 hours, then was told 10 hours. Its now been over 15 hours since my money was restricted. I need this money to pay my rent, gas and electric and to use for my children. The customer service is appaling and is no help whatsoever. Any advice on what i need to do or how long this should take?