Then don't link your savings account with your current account.
If your savings account has less than $500, every month -$2.
If your current account has less than $1500, every month -$2.
For UOB if your current account has less than $3000, every month -$2.
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i issue cheques with my current account leh. they transfer the money from my savings to pay.
anyway, they can raise it to $1m aslo OK with me just pay $2.