No offense but is your Thai girlfriend 80+? This is suuuper easy to find information for any non blind Thai woman with a phone. I‘d argue even blind people with an Iphone can figure this out 😅
Nowadays it’s hard to find a place that doesn’t accept any sort of online payment method. The only ones are usually super old sellers or migrants that don’t have bank accounts (Burmese/Cambodian etc I suppose, but also rare).