Simply the BEST agency in Thailand! You really don't need to search the other one. Most of the other agencies are serving only customers with residence in Pattaya or in Bangkok. Thai Visa Center is serving all around the Thailand and Grace and her staff are absolutely amazing. They have 24 hours Visa Centre which will answer your mails and all your questions in maximum two hours. Just send them all the papers what they need(really basic documents) and they will arrange everything for you. Only thing is that your Tourst Visa exemption/extension must be valid for minimum 30 days. I live North near Sakhon Nakhon. I came in Bangkok for appoinment and everything was done in 5 hours. They opened bank account for me early in the morning, then they took me to Immigration to convert my Visa exemption to Non O Immigrant Visa. And the day after I had already one year Retierment Visa done, so all together 15 months Visa, without any stress and with wonderful and very helpful staff. From beggining to the end everything was absolutely perfect! For thr first time customers, price is maybe bit expensive, but it is worth every single baht. And in future, all extensions and 90 days reports will be much much cheaper. I was in contact with more than 30 agencies, and I almost lost any hope that I can make it on time, but Thai Visa Center made it all possible in just one week!