As expected, T-Mobile today brought back its Samsung Galaxy S8 buy one, get one free deal.

The new limited time offer will get you a free Galaxy S8 or S8+ when you buy one. Both phones must be purchased on EIP, and a new line of qualifying service is required. That means that you’ll need a new line of T-Mobile One or Simple Choice Unlimited.

Once you’ve bought your two phones, you’ll need to point your browser to T-Mobile’s Promotions Center and enter the promo code 17GS8SAMBOGO. T-Mobile will then send you a prepaid MasterCard card to cover the cost of your second phone. If your second phone is a Galaxy S8, you’ll get a $750 card. Buying two Galaxy S8+ phones will get you an $800 rebate card.

This deal is now available, but T-Mo isn’t saying when it’ll end.

The Galaxy S8 and S8+ are two of the best phones on the market, offering solid performance, good cameras, and an attractive design. The fact that T-Mobile’s deal requires a new line is likely going to turn some folks off, but if you’ve been thinking about getting a new line on T-Mo, this deal is one to consider.

Sources: T-Mobile, Galaxy S8, Galaxy S8+