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The safest bet is to look directly in the promotions sections of Mercado Libre and Amazon, or follow those platforms' official accounts on social media where they post verified codes. There are sites like RetailMeNot and similar ones that collect coupons, but always check that they're recent and have comments from people saying they actually worked, because a lot of them are outdated or just don't work.

Avoid clicking on discount links that come through direct messages or WhatsApp groups, because those are usually traps to steal your data. Beyond what's mentioned above about official sections, many brands have their own pages where they post exclusive codes, so if you're buying something specific (clothes, electronics, whatever), it's worth going straight to the brand's website and looking in "promotions" or "offers". Also some banks have deals with these platforms and release coupons if you pay with a certain card, so check that out when you're at checkout.

Sites like RetailMeNot or Honey have coupons that people share, though not all of them work and some are already expired, so it's worth checking the comments before you use them. Either way, cashback apps like Uala or Mercado Pago often have direct discounts without needing to hunt around for random codes.

Online stores usually have specific periods (seasonal sales, Black Friday, anniversaries) where they launch automatic discounts without needing a code, so sometimes it's cheaper to wait for those moments than to go hunting for sketchy coupons. If you really want to track active codes, the Honey browser extension will alert you when there are discounts you can apply at checkout, though it's not a miracle worker. The important thing is to be suspicious of any link that comes to you through private messages or chat groups asking you to click to "unlock" special offers - that's definitely a scam.

The apps themselves have "Offers" or "Coupons" sections where you see codes they've already validated, so that's the most straightforward way. Beyond that, sites like Honey or browser extensions show you discounts while you shop, but most of them require you to trust them with access to your browsing data - I personally prefer to go straight to the source. The important thing is not to click on links from WhatsApp or Telegram that promise impossible discounts; that's how they steal your data or slip malware onto your device without a second thought.

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