T-Mobile quietly launched a “Magenta Nights” T-Life app promo with an ultra-short window (6pm PT–6am PT) that offered some switchers up to $1,000 via a virtual prepaid Mastercard—often with fewer strings than typical port-in deals. The offer reportedly returns next Sunday (June 21–22) with additional Sunday windows after that. Here’s the dealer play to capture switches without first-bill surprises.