I purchased a keyboard from the store. The buying process went smoothly. The keyboard had a defect, a manufacturing flaw. I returned the item to the service center, and they sent it back to the supplier for a replacement. Apparently, there was a delay with the supplier. The service engineer recommended that I request a refund since similar issues occur in the batch. So I did. I want to note that the store refunded my money without any delays, on their own initiative, even after the 14-day period had expired; they treated me with respect. I recommend it!
