That is visa/border run company, not the visa agent inside Thailad, and says as below
"Tourist Visa, apply if you stayed less than 90 days in past 6 month (they count time spend under any visa), show own Thai Book Bank with balance THB 20,000.- up OR print out from your Bank account from home country value USD 700.-up. Onward air ticket or Rental Contract not required. "
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