3 of my mates do the taxis, one is my next door neighbour, none have quoted £1200 a week when asked, the closest I got was £1000 which as they put it, is them hammering it at the weekend. I'd hazard a guess that like most jobs of that nature there are busy spells and lean spells, hammering it Monday - Wednesday is probably not cost effective for the hours put in. Not saying there isn't the potential to make that kind of money, but it isn't yer basic wage.