Samsung is offering a $30 store credit to those who preorder its upcoming Galaxy Z Fold phones, but there's a catch. The offer is only valid for a limited time and can't be applied to the cost of the phone itself. Instead, it can be used towards the purchase of accessories or extra services, such as Samsung Care Plus. This deal is a smart move by Samsung to encourage early adoption of its new devices and to incentivize customers to buy additional products. However, it's important to note that the credit can't be saved for later use, so it's a one-time opportunity. If you're considering preordering one of the new phones, it's worth filling out the interest form to see if you qualify for the credit. Overall, this offer is a great way for Samsung to generate buzz around its upcoming devices and to reward loyal customers. But it's important to read the fine print and understand the limitations of the deal before taking advantage of it.