No Sugar or More Sugar

Have you encounter a situation when you ordered a drink & ask for NO SUGAR & they gave you MORE SUGAR???

I have been handling this misunderstanding for years after I stopped taking sugar for my Tea & Coffee.

KL Petaling Street Buying Tau Fu Fa
Me : Excuse me... 1 Taufu Fa please ... No Sugar
Shop Tauke : More Sugar?
Me : No... No Sugar
Shop Tauke : More Sugar??
Me : No... No Sugar.. No Sugar!!!
Shop Tauke : (Looking at me irritated) ..... It's *Without Sugar*....
Me : Ya ya whatever.... (Looking rather shameful for a roadside cantonese stall operator to correct my English!!! Damn!)

Paid the tauke & continue my shopping...

So now I know it's WITHOUT SUGAR & not NO SUGAR.. -_-lll