Firstly

It was on the first airtel line I was using for business

Airtel comes only at night hours...scrapes all the credit on the line and leave you with an empty phone and empty support from customer service in the morning hours


The second

Airtel tells you they are welcoming you back to their networks

Use code 241....

With the above

Airtel gives you 500 naira to call any network on 100 airtime recharge

The bad thing is

You will be paying close to 60 naira per minutes which translate into

About 8-9 munites of air time


3. only on airtel

I saw

10 naira per SMS

So you need 50 naira to send 5 SMS instead of 20 naira

This method can only be described as information technology reversed robbry

This is robbery by reversal