Online platform for purchasing and activating gift cards
I was just recently using an online service to buy eSIMs and came across the option to buy gift cards on the same site. If interested, check it out here: esim Singapore. I also picked up an eSIM there before traveling - very convenient, you can order through Buy eSIM for travel. All in all, it was a real lifesaver, especially if you don't have time to look for everything offline.