How long till funds show in my account from paid fiver gig?

I read online that its 3 days but its been more than 3 days and still no funds for the gig I delivered.

I remember it's 14 days

Yes it is 14 days.

As far as I remember, the buyer must mark the order as completed. They have 3 days to do this or else it's automatically marked completed.

Once order is completed your funds will go into "pending clearance" which takes 14 days.

You can check your pending clearance by going to Sales > Revenues > Show "Pending Clearance" (this is a drop-down menu)