Articles in this category How to sell airtime & electricity To be able to sell airtime & electricity, you need to first apply for it by informing your sales agent or you can complete the application here: VAS agreement Once your application has been approv... Top It Up App - 'insufficient funds' error When you are trying to sell airtime or data and you get an 'insufficient funds' error, it means that your Standard wallet does not have enough money to sell the airtime. Solution: Go to your setting...