This is becoming a rather fruitful season courtesy of safaricom. First the offer of 100mbs for every year you've had the line. I was gifted with 1600mb for 16years. (Can't believe it's been that long).Downside though is that it is valid for 24hours...really??? Then today my line is credited with airtime worth 538 bob for wrongful deduction from a subscription I did not enroll for. I had no idea they had been making deductions so its a pleasant surprise. Still it explains my fast evaporating airtime. Looking out for more bonuses and surprises. Hope they keep coming