Hello, I received a sure gift voucher message without the code. How do i get the code?

Congratulations! You've been gifted N10,000 SureGift voucher from 07065627587 on the MTN Valentine Campaign. Voucher Code:. Expires 14/3/2023. Visit http://www.suregifts.com.ng to use. Click https://mtnapp.page.link/myMTNNGApp to download myMTN NG App.