Is visa run a serious offense?

Obviously, they consider it serious enough to ban you for two years.

Which reasons would you base a request on, to be allowed to visit again before the ban expires?

I recommend avoiding the country for the full two years, as your chances of getting an exemption are very small.

Hi, may i know  what is ica"s email for reappealling

@beppi Yes. I am thinking of sending an appeal even if it's just a year after I was refused entry.

But has anyone here attempted to do that and got an approval from ICA?

@santiago38438 You cannot appeal against a decision by ICA to deny you entry or impose a ban.

The only thing you can do is to ask for a way to lift the ban earlier. They can, out of goodwill, grant it (if you follow their instructions!), but they don't have to!