I bought a product at Megastore can I exchange it at the Mestalla store? May 25, 2020 16:02 Updated Yes, you have to go to exchange it. Related articles What is the deadline for refunds that have expired within the COVID-19 store shutdown? What are the cashless system benefits? How will pending refunds before COVID-19 shutdown be made? How can I return an item bought online through DHL? Can I return a personalised product?