Many shoppers have faced a frustrating surprise at checkout when the final price suddenly rises due to so-called exchange rate changes. A product advertised at one price quietly becomes more expensive at the final checkout stage. For consumers, this raises immediate questions about rights, fairness, and legality. Is a business allowed to change prices at the last moment? Should customers be warned more clearly? And does consent actually exist when the change appears after a buying decision feels complete? Exchange rates do fluctuate, yet responsibility does not disappear with volatility. This issue sits at the intersection of consumer protection and trust. Understanding how pricing shifts occur helps buyers judge whether the practice reflects reasonable business reality or crosses into unfair treatment.
