According to MoneyGram, if a transaction has not processed yet online, meaning the sender has not received an email with the 8 digit reference number, changes are not possible and the sender would just have to cancel the transaction and resend.
If the transaction has completed and the sender received an email with the 8 digit reference number, the sender can go into a MoneyGram agent location with ID to make changes to the receiver's name.
You can find information at any time about locations and services in our network by visiting http://www.moneygram.com and clicking “Find Us” or “Find a Location”. They always recommend you call the MoneyGram agent prior to visiting their location to confirm their services and hours of operation. Let us know if you need anything else.
MoneyGram offers convenient money transfer options. It's easy to send money online or in person; for cash pick-up or direct to a bank. They also offer inmate services & transfers to mobile wallets.