MoneyGram Money Transfers Complaint

MoneyGram Money transfers department,

Domestic (US) money transfer Money was not available when promised Virginia

I sent $1600.00 to an individual in ohio. I was required to provide a girst and last name of the recipient so they could be identified. The recipient went to a walmart store to pick the money transfered up and was informed there was hold on the money sent. I was forced to call customer service to have the hold released. I have called three different times and have been placed on hold for over an hour each time. Now the person who has been trying to recieve the money has been waiting for over three hours. The cash money that i gave to moneygram is held up and can not be released. Why is there a hold on cash money?