HTC said they were going to begin an aggressive marketing campaign and this newest promotion proves they were quite serious about it. We have a double deal alert from HTC for you guys this afternoon. First, HTC has extended their $100 dollar phone buyback/tradeup program until May 19th, and final redemption to June 19th. Previously this deal was only available until April 26th. This has now been extended by almost an entire month more.

That's not all though. The second offer HTC shared today is even more lucrative if you are trading in one of eight specific devices. You can get up to $375 dollars back from HTC when purchasing one of the following devices:
  • iPhone 5 = $300-375
  • iPhone 4S = $200-255
  • Samsung Galaxy S3 = $130-210
  • Blackberry Z10 = $250
  • Motorola Droid RAZR = $100-184
  • LG Optimus 4X HD = $150
  • Blackberry Curve or Blackberry Bold = $100

Here's a quote with a few more tidbits of info regarding this deal,

The cash back you’ll receive with this deal, like most trade-in deals, comes in the form of a prepaid Visa card. According to the chart on the official HTC website, and as expected, Apple’s iPhone 5 will net you the most amount of cash followed by the iPhone 4S, the Blackberry Z10 and Samsung’s Galaxy S3. Keep in mind that HTC will only be giving you $375 for a specific model of the iPhone 5, and that is the 16GB GSM version.

To get your cash back from HTC, you’ll need to purchase the HTC One, enter the promo code “HTC100″ on HTC’s promo website and enter in all the information they need to know about the device you’re trading in. After that, you’ll be given a quote on the value of the device. If you agree to that quote, you’ll be able to print off a shipping. Just make sure you send your device to HTC by June 15 to get your prepaid Visa card.
This seems like a pretty lucrative offer in several circumstances, especially when you consider that the typical full retail of price of a new HTC One is between $550 and $599. This much off makes it a very affordable proposition. It's only available this weekend, so you may want to check it out pronto. Here's a link to both offers below.

Source: HTC One $100 CashBack Offer & HTC One $375 Weekend Exclusive TradeUp Offer