On Thursday, Andrew Mark Peters, 54, and Darren Anthony McNicholas, 50 pleaded guilty to offences of dishonety in a court in Shah Alam, about an hour outside Kuala Lumpur.
On Friday, Lloyd George Bedwell, 48, and Roger Hoi Wing Hu, 46, both British citizens pleaded guilty before a court in Penang, Butterworth.
They were arrested on 21 February on charges of fraud.