Account safety and virtual purchases

What delivery methods do digital marketplaces use to protect user accounts when selling virtual goods, and which practices should users avoid to prevent long term security issues?

I ended up digging into this topic myself since it looks like not many people here are familiar with how these systems actually work, and maybe this will be useful for someone else later. From what I found, most account safe marketplaces rely on delivery methods that do not require login access, and instead use player identifiers or official in game recharge flows. In cases like a Clash Royale top up the safer approach is when only a player tag is needed and the currency is credited directly through supported channels. Practices to avoid are any requests for passwords, email access, or recovery codes, because those create long term security risks. Clear order confirmation and visible balance updates are usually the best signs that the process was handled correctly.