what you say is not a fact it is incorrect information. Your point about it being better to do it yourself is valid but it is quite possible to use an agent that gets you a perfectly legal stamp and then, next year, if you meet the requurements, get the stamp at your local immigration office. I'm not arguing with you anymore because I know j am 100% correct.
I showed the clerk the certificate I already had for health insurance and they opened an account for me without buying theirs. I had to go to the branch 4 times before I saw someone who got it done. First time they wanted me to have a work permit. Second time they thought my Visa had expired but they were looking at my used re entry permit. Yiu might find theirvindutsnve useful though. Glad you finally got your certificate of residence.