Mog station issue please help!!!

My free 30 day subscription has expired and i plan to renew it as soon as possible but there is a strange issue. When i log in to my account on the mogstation website its says proceed to checkout to renew my 30 day subscription. As i selected this, it tells me to add my details such as name address etc... when i click next is says my postal code is invalid which makes no sense to me. Does anyone have the same problem? what can i do? please help!! I just got my relic and was in progress to get my relic+1 so i really want to play lool

Greetings,

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