Aldi $350 Gift Voucher Scam. Yet another gift voucher style scam attempt has been caught by MailShark spam filters in the form of an Aldi $350 Gift Voucher Scam. It is very similar to most scams we catch in this genre. Aldi is a leading global discount supermarket in over 18 countries – we believe this email is targeted at their Australian market. Delete this email if received to avoid the chance of a malware infection.