Am sure most of us have one time or the other been victim to random charges and frequent airtime deduction from Nigerians network providers for unsolicited services you don't even remember subscribing for. It even gets more annoying when you are unable to unsubscribe and can't even contact the customer care service.

If you happen to be a victim of Glo's unsolicited services and frequent airtime deduction or you just want or unsubscribe from their caller tune service then this codes might probably be of help.

To Deactivate Glo Caller Tunes
Just "SMS “dereg” to 7728 without the quotes

How To Deactivate All Unsolicited Services
If it happens that you probably don't know the particular service deduction your airtime then you can either call the customer care or
SMS “UNSUB” to 8888 without quotes and that will unsubscribe you from all 8888 unwanted services.

That's all guys.

If you have any question, feel free to ask and don't forget to share this post.

Source: http://www.yomitech.com/2016/08/how-to-unsubscribe-from-glo-caller-tune.html