Cancelled Order - Update Order Status, No Options Work

I have a single customer (a friend who i know so i know there not a fraudulent customer)

this particular customer no matter what they order, i always seem to have an issue with him. his order shows cancelled every time,

i can set the order to pending, but as soon as i select complete it shows as cancelled. even if i hit the override tick box the order still shows cancelled,

i have turned off the antifraud modules and it still dose the same.

can anyone help as this is becoming a pain in the back side

i have managed to get the status to change by manually editing the database but i don't want to have to manually change it every time i have an order from this one person.

BUMP ?

did you connect your payment methods with a order status?

i set the paypal order status to pending.