post office in Burgos and Leon

I have searched the forum, and have tried to use the correos website unsuccessfully....so my outstanding dilemma is: I want to send on a small package of dehydrated food to Burgos and then Leon, but I cannot work out which address to use, and then when I get to each town, which post office would be the right one to pick up from.
For example, one listing gave 09080 as the code for Burgos, but none of the addresses on the site match that - 09002 (Pl. Conde de Castro 1/San Pablo) is the closest. So which do I use to send my parcel to? If it is the former, how do I know where to go for collection?

And same questions for Leon.

Thanks Margaret. I came up with those same addresses but they were different to what someone else has posted, so I was a little hesitant to use them.
The 14 day rule is exactly why we would post our box to Burgos and then on to Leon two weeks later.
Lise, do you think we should take a box from NZPost? It's not an unreasonable suggestion as my hubby carries a large (but largely empty!) pack.
Now my job is to try to co-ordinate my big kids in India to send a postcard to Leon to arrive before we do - would make the little kids so happy, especially when Daddy has gone home again.