Hello!
Well, I was aware of the situation about phoning to yeogwan...The problem isn't that it's only in Korean, because I might have been able to manage it in some way (I only studied it for a year but I can say the dates and stuff, but I'd rather not to), but phoning from France is sooooo expensive, I don't even want to know!
Maybe I can try Skype because they are offering a month of free call throughout the world ?
Other than that, if you're located in Seoul, instead of phoning yourself, maybe you could ask the KNTO office to phone, because according to what gilles said, they can do it!
It would be a great help if you could do that, but I don't it to be a burden for you, I really don't want to disturb!
But if you do have some time, here's the phone number and names of the place I would be interested to go to (many places in case nothing's available..)
Hanseong Yoegwan 063 288 0014
Good morning motel (kut moning mot'ael) 063 251 9948
Yangsachae guest house +82-63-282-4959 (I found the website for this but sending an email doesn't work!)
If you managed to do it, I don't know how I am going to thank you! Maybe a drink when I'm in Seoul?
Have a nice day
Marine.