More then 1 voucher?

Is it possible to activate more then 1 voucher and get more exp? Like if you have 2 vouchers and double exp weekend is it 4x exp? Someone please explain :)

@frisera;

Yes, all vouchers can stack up, for example with 1 voucher activated you get 100% exp more, with 2 vouchers its 200% more, with 3 its 300% and so on :)

so saving like 4-5 vouchers so it like a real ot? :O That is sick, really sick

Did not even know that also :p

Thanks @Mentoll

Thanks me? for brining up the subject!!