You said, "After two visa-exempt stays of 60+30 days, you will be refused entry." You state this as a fact. Is this the case every time? I haven't lived in Thailand in a couple years so maybe the new rules explicitly state this but I hadn't heard of this.
I always have this loaded on my phone but don't purchase unless they ask. Then i just purchase quick as i tell them, "hold on. i need to get it in my email." Only takes 2 minutes.