Giffgaff

Pay As You Go? Really????

I ordererd a sim, it arrived but needs activating, before I even get a chance to see a number of a phone line I am asked to pay and to pay MONTHLY. Surely the whole point of PAYG is that I pay when I want, how I want and how much I want.
AND for those people who think it is cheap... You get a phone, a sim, 250 mins, access to emails etc and 0.5 gig access to web for just £7.50 per month from TESCO and still O2 network. The phone looks like a cheaper version of Blackberry (Samsong) but hey for £7.50 no complaints.
I want a PAYG to have as my spare number so people from work can't access me at weekends and evenings BUT I see no point in paying a monthly amount if it is pay as you go........................