Vodabucks

Vodabucks is a total ****, I used to be able to get data with my talking points when I was short of cash, but since that's been replaced with Vodabucks, I am unable to do that, cause the options that are on offer in the Vodabucks store all require a cash amount, or they are data for specific items e.g. Instagram or Whatsapp. I just want to be able to convert my Vodabucks to a data bundle which can be used for anything