It is very common for brides from south east area to get (maybe "suffer" or "experience" instead of "get") the matrimonial fraud ("fraud" is an uncountable noun, so you should not use it with "the" when you are not talking about some specific act of fraud) by a Korean agency (or "by Korean agencies"). Many grooms who married with south east brides are not qualified and due to the communication and culture problem, they didn't understand themselves well.