What Zone Is Ashford In Middlesex. Need To Travel From Ashford To London Victoria For Work And Need To Know If I Can Use Oyster Card, As Paying Returned Tickets Everyday Is To Expensive?

What Zone Is Ashford In Middlesex. Need To Travel From Ashford To London Victoria For Work And Need To Know If I Can Use Oyster Card, As Paying Returned Tickets Everyday Is To Expensive?