Answered question
As inn my sms history
Visit the MyMTN website, sign in and then click on the hamburger menu option at the top right corner.
Select "History"
Then select the "SMS" option.
Type the date range(maximum is 7 days).
Your account's SMS history will be displayed and you can save it to your device.
You can visit the website by following this link: https://mymtn.com.ng/accounthistory/history/sms