Approximately
*****
for the first visa.
You get 15 months multiple.
Next year about
*****
. You get 12 months.
This is through an agency .
I use Maneerat in Soi Post Office.
Off beach Road Pattaya.
They take care of all the 90 day reporting in the price.
You can do yourself if you have the necessary funds.
Upto you as the thai lady says .