Those would be incredibly rare, however, you can make your own dot journal and have them printed and bound at your local office store. Any size any orientation. All done in MS Word.You can add anything you want to the pages and number them if you like.Like this place.
To make your own notebooks use HP 32lb Premium LaserJet paper. Set up a page in Word with no spaces between paragraphs and in a 12pt font. Type a word and highlight it. Now go into advanced font settings and change the font to expanded by 12pt. (5mm spacing between dots). Go back in and start typing periods. You can now erase the word you typed. Fill the page and voila! Now if you go in and chage the very last period in each row to un-expanded, they will all center on the page.
Note do not use Veranda as the font, it somehow groups the periods in threes.
If you do not want to print the paper you can buy 200 sheets of 120gsm (32lb) dot grid paper for $22
Or you can just buy the 120gsm notebooks spiral bound - 3 A4 notebooks for $22
or
Hardbound, Numbered, 120gsm, elastic strap and ribbon bookmarks - $17