Great service, the whole chain from the people in charge of the Chat on Line, to the guy collecting and giving back my passeport and payment (5500 thb, coz emergency procedure) and the people making the visa extension. Result, I got in 2 days my visa extension of 30 days from my exemption visa I got 30 days ago at entry in Thailand. It saves a long waiting time doing that at the immigration central office of Bangkok ( C039, C040/3 อาคาร IT Square, Chaeng Watthana Rd, Talat Bang Khen, Lak Si, Bangkok 10210). On top of the efficiency and availability (24 hours I think) of the service, people are helpful and kind. Thank you so much for this new service. With this Line help desk, you can also ask if you are eligible to a visa extension or not.