You said in a earlier post that you was Woking online and other was just being jealous of you
So first cocky and now quite and easy turning in to whining please spare us for this show you should Just consider yourself real lucky you ain't being blacklisted
Is it your own company or are you working for a company etc
Anyways I would recommend to get a service to do it for you it's a lot of paperwork there will need to be provided and also not sure if your company can live Up to the terms and condition for extension in Thailand
In reality it's not a visa it's a visa extempt stamp for 30 day's where du can be asked to provide a return ticket or a ticket out the country and yes you can get and extension on 30 day's more and that's it then you will have to leave the country