You've missed out on the extra £5 bonus, but if using the £10, £12 or £15 goodybag you will get the increased data from your next goodybag to start on or after 14 August.
so effectively 41Gb for 10£ for the first month for a new comer!
let the new comer use it for ayear atleast!
or a big hole in profits
The maximum a newcomer could get for their first month would be 40GB (the extra 1GB comes with their third goodybag), but to get that they would have to forego using their phone for around 3 days from activation of the SIM, as the £10 bonus credit is added in two tranches of £5, 72 hours apart.