I would say "please bring change of 10 and 5 euro notes !" but I am not native

could you please tell me differences in these 3 in one or two lines?

Since you are native speaker,what about "would have" ? : "If you have a good reputation, publishers will take a chance on projects they would turn down from an unknown"(instead of would have turned down).Is there any subtle change in meaning ?

Understood.Does this works if the case is reversed? Eg."If you have a good reputation, publishers will take a chance on projects they would turn down from an unknown"(instead of would have turned down).Is there any change in meaning?

So "when" in "when i get money ,i spend it instantly" is as correct as "whenever" ,even in formal writing ?