I) click topup at the top of the page
II) under 'what would you like to buy', select goodybag
III) next, 'choose your goodybag' by selecting the picture of the one you want
IV) then below in 'summary' select if you want to buy with debit card or with airtime balance
Now that you have airtime credit, you can convert that in to a goodybag.
Click on the bag you want below to purchase it using your existing airtime credit.
Alternatively, go to top-up then:
1. Select Buy goodybag
2. Select the goodybag you want
3. Select Buy your goodybag with your airtime balance