$350 is the amount Microsoft is willing to pay for your device towards a new Windows device in their trade in offer
Microsoft has raised the limit. If you do not understand what we are talking about we will say that previously if you owned a Apple iPad, iPhone, iPad mini or any Android device and you were not happy for it Microsoft made an offer to pay you up to $200 for a new Windows Phone or Windows powered device. However, the bar is now set even higher. Now Microsoft is willing to pay more for less. Up to $350 for your i-device or Android one, which you do not like.
To see exactly what you are to receive for Apple iPhone 3G in your drawer ($10 in working condition with no damage), or for your Wife’s Motorola DROID RAZR M ($70), go to the sourcelink and get a quote.
If you really are satisfied at the amount of money Microsoft is willing to throw away just to make you buy their Windows Phone devices and tablets mail in your trade to Clover Wireless within 30 days with proof of purchase, and you will receive an appropriately valued Visa prepaid card in the mail.
Do not expect miracles here, however. Microsoft is willing to pay top dollar amounts for devices with the most native storage. For example, Apple iPhone 5 brings $265 while a 64GB Samsung Galaxy S4 fetches $275. On the contrary side is HTC Rhyme, which gets nothing in a trade.
Overall, the offer is more for the people, who are willing to abandon their old device and they hate it so much that they rather trade it in and make some money towards a new Windows device than not use it and leave it to collect dust in the corner. It is a great opportunity to collect some money on devices that would otherwise sit in your home and do nothing.
Source: Microsoft