well on that page u can create it but it's in polish
go to that page create acc and try to follow what I said
I haven't other way sry
I guess if u use translate page in chrome u may understand things line
poczta - mailbox
zarejestruj sie = register
fill up all fields using blablabla
Ustawienia - Settings
Alternatywne adresy - alternative mails
Dodaj - Add
Kod Pocztowy - Post Code ( In poland are in digits only in 1 format like 34-243 )
there is all what u must to know

go to that page create acc and try to follow what I said

I haven't other way sry
I guess if u use translate page in chrome u may understand things line
poczta - mailbox
zarejestruj sie = register
fill up all fields using blablabla
Ustawienia - Settings
Alternatywne adresy - alternative mails
Dodaj - Add
Kod Pocztowy - Post Code ( In poland are in digits only in 1 format like 34-243 )
there is all what u must to know
SELL 300 ED