I found the Raw but Its just To Chapter 5

Here until chapter 7 in Russian
http://yaoichan.me/manga/100587-dear.-door.html

i Know we’re not exactly doing anything right by reading unofficial translations, but at the very least, we should try to support the author. please please please, if you really enjoy the series, buy the raws. otherwise the author that makes these lovely comics won’t be able to make a living and make more comics...

bomtoon allows international credits cards to be used to buy coins, I used my MasterCard without any hitch. the total number of coins needed to buy all the chapters as of late are 45 coins, which is roughly 9 dollars (the equivalent of buying like 3 cups of coffee)

I must say, I really enjoy the series, and I buy when I can. There's so much good stories and authors and it's just impossible for me to buy them all, but I support authors whenever I can.
I'm glad to hear that there's so much people here that want to contribute for their hard work, after all we can enjoy in some good stuffs :)

pls tell me how to pay with an international card, I didn't find a way :((((

Me too. I usually read on lezhin so i thought it would be easy to buy the chapters but in the end i couldn't figure it out