| | We currently accept payment by cash, check, credit card, wire, and ACH from your bank account. Accepted credit cards are Visa, MasterCard, and Discover. We encourage monthly payment by ACH or automatic charge to your credit card. Download the attached form and fax to our accounting department at 210-656-5182. Download HST Automatic Payment Authorization Form.pdf Download HST Account Application Commercial.pdf Download HST Account Application Residential.pdf | |