What are the current procedures and costs for obtaining a Certificate of Residence in Chiang Mai, Thailand?

The procedure for obtaining a Certificate of Residence in Chiang Mai requires you to submit documents at the Chiang Mai Immigration Office located on the 2nd Floor of Promenada between 9am and 11am, and you can pick it up two weeks later after 2pm. The service is free, but a TM30 form is also needed for applying. An expedited service downstairs is available for 1000 baht for next day processing, but previous options of 500 baht for quicker results have reportedly returned, although with cost increases.