National - Combining coupon

I always heard that national allows you to combine coupon. However, I've never got it to works.

Doesnt matter it is free day/dollar off/upgrade coupons. It always says these coupons cannot be combined together.

So my questino is: have you guys ever successfully combined two+ coupons? If not, why national bother putting multiple coupon inputs there?

one example is when you have multiple 1-2 free codes, you can put them in those coupon fields to redeem upto 3 free days together. :)

one example is when you have multiple 1-2 free codes, you can put them in those coupon fields to redeem upto 3 free days together. :)

Back in the day, some coupon codes used to be combinable, but it's just limited to free days now.

Oh the good old days......
When you used to out in a $50 coupon code and and then select how many of them you had up to 7. I miss those days.


Anyway, you can still combine the contract id and the rate/product code and one coupon (aside from the 1-2-free coupns).

Oh the good old days......
When you used to out in a $50 coupon code and and then select how many of them you had up to 7. I miss those days.


Anyway, you can still combine the contract id and the rate/product code and one coupon (aside from the 1-2-free coupns).

I've never seen another rate code besides EWEB.

If you could only combine 12Free with Free day credits.