I activated the SIM on another device. All I needed was the bar code and number. It took time before I got it approved, though. I never did get a text to my other number that it had been activated, so it took even longer. The 20 Mbps package would only have worked if the Lazada seller had activated it, so they gave me a reseller code for 10 Mbps. The problem was that they had sent a piece of paper warning about that, ONLY in Thai. I should have done a Google Lens on that, but didn't. So I have to live with 10 Mbps, which actually is enough. I just wanted to try 20 Mbps.