MTN charged me N3.85 for a 7 seconds call. Guess the rate used? 55kobo/sec. I thought it was just that particular call. I checked many times again -- from less than on minute calls to 15 minutes call. Same rate of 55kobo/sec was applied.
So I took my Airtel phone and did same check.
I noticed something similar. For a 6 secs call, Airtel charged me N2.40. That is a rate of 40kobo/sec. No wonder my bill is always getting above N10,000 by middle of month.
I don't know about Etisalat and Glo, but I suspect that they are also using similarly high billing rates as the industry is price competitive.
I am now being more careful with my phone calls. No more unduly long phone conversations, except it's a sales call.
And, please, if you use Etisalat and Glo. Do help us check what rates they are using now. And if you have MTN and Airtel, are your rates similar to mine?