@Davej311 If your account is in credit you have spare money available to pay for fuel. If your account is in debit it means you need to put in more money to pay for fuel, so it is the amount you owe to the fuel company.
@Davc He's not the only one, i have received refunds without asking .Last one i knew about was when i went into my bank account. You can go into account settings to set your refund options.
@Katiey30 Yes a plus sign means you are in credit and that money will be used to pay for fuel this winter. Most people have a positive amount in their account in September before the cold weather starts.