20.
You shall be given twenty one (21) days prior written notice of any changes amendment, supplement, addition and/or variation to the T&C stipulated herein through the post, by media, by electronic message through BOCnet, Mobile Banking App or by other means permitted by law. If you choose to continue to use the Biometric service, you shall be deemed to have accepted the revised T&C accordingly.
You should read and understand the T&C, including any amendment, supplement, addition and variation to the T&C, before processing any transaction through the Biometric service.