I wouldn't even donate $2 if I were you. NSFs aren't even paid
salaries in the first place, only pittance "allowances". If anybody
is obliged to donate, it should be those regulars, not NS
Slaves.
And what is the idea of purchasing "offs" showing? That money can
buy everything in Singapore?
Who knows where the money would end up with?
NKF maybe?

NKF = National Kelong Foundation
Donations should come from the heart, and within one's own ability,
not with coercion from people with power to withhold privileges in
the event of "non-compliance".
I'm willing to donate small amounts of money if it's really for the
needy, but not if I'm being forced into such situations.