Starting from August 2012, changes of bank account of pensioners/ derivative pension recipients are allowed to be made once a year. Every application must be done with by submitting the letter of Permohonan Pertukaran Akaun Bank as shown in http://www.jpapencen.gov.my/penukaran_akaun.html
Once the form has been completed, it can be mailed to this address:
Kumpulan Wang Persaraan (Diperbadankan)
Skytech Tower 2, Jalan Teknokrat 2,
Cyberjaya, 63000 Cyberjaya,
Selangor, Malaysia