Yes – MibMob guarantees the minimum sale price of your iPhone 6s. If you want a quick sale we will buy your phone at the Speedy Sale price quoted at the time of sale. To get an even higher price for your phone, set your own price and list on the MibMob marketplace and sell directly to buyers. If at any time you want the cash urgently, you’ll be glad to know that our trade-in price never expires. And if you’re not happy with the price offered, we’ll return your phone free of charge with no questions asked.