No. You can only get it by mystery gift.
You have to get it from an event, but there hasn't been any event lately for Pokemon diamond/pearl. Most of the events are for platinum now, oaks letter was given out a feew weeks ago for platinum. You can keep a look out though by going to serebii.net
You get oaks letter from a special event that is on the internet or wifi. you get it from any poke-mart in sinnoh
to get professer oaks letter then you must first have the mystery gift from Jubilife city.You must also have the national pokedex. Save your progress.Then turn your Nintendo ds on and select mystery gift.Then you must select via wi-fi connection and choose oaks letter. then you must play Pokemon diamond and go to any poke-mart and talk to the man in green and he will give you oaks letter. ----------------------------------------------------------------------------------------------------------------- Can u do it any time, or do u have to do it by a certain time?
No because it does mater
Here's the diamond version code couldn't find it for platinum: 94000130 FCFF0000B21C4D28 00000000B0000004 000000000000AA3C EDB883202000AA68 00000009D2000000 00000000Press L+R, then go into any PokeMart and talk to the guy in green. I've tested this code and it works.
Go to Central City in Texas and than Take a dump on Prof. Oaks car.
Open, Olde, Oaks. Oban. Oxen Oral. Okra. Oman. Oops. Oven.
no he dnt have time for a girl if he did he wuld have any girl he wnt
You first needed to get it from mystery gift. If you didn't, you can't get it anymore. If you already have it, you can go to any Pokemart to pick it up.
The only way to get Oak's Letter is through Nintendo or via a cheating device. Sadly Oak's Letter is an event letter that allows you to gain access to where Shaymin is at. Nintendo hasn't given the item out yet but whenever they do, you'll be able to download it from them and then a guy in a green hat will be available in any PokéMart in order for you to get the item.
you can not find it at any of the poke centers or anywhere else but through action replay or Events.When you have the action replay code you can get it at any pokemarts from a man in green
No there is noneNo there is none