I want to buy data of 6000 naira for a month

You can use myMTN app to buy data of any amount. Alternatively, you can also use MTN data USSD code for that. 6000 naira can give you up to 12GB. But if you need more and cheaper data like up to 25GB for 6000 naira, then check out this post. https://nnu.com.ng/how-to-buy-1gb-for-ngn-100-on-mtn-usin...