Spend $200 on accessories, get a $50 MasterCard back by mail.
Nest 3rd gen $199.99 + filler - get $50 MC
2 Fitbit Charge 2 + filler, get $50 MC
Beats X $99 - buy 2, get $50 MC
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Copy from Verizon site:
Get a $50 prepaid Mastercard when you spend at least $200 on accessories. Visit the Promotion Center with code FIFTYBACK for submission form and FAQs. Limited time offer. Must purchase $200 in eligible accessories in same transaction from 11.27.17 through 12.13.17 at Verizon Wireless retail store, online and telesales. Verizon gift cards, Bose products and cellular enabled watches/ devices are excluded. Must submit proof of purchase online within 60 days of purchase.Verizon Wireless Prepaid Mastercard® mailed w/in 8 wks after receipt of valid claim. May not be combined with other promotional offers and VZW employees are excluded. Limit one Prepaid Mastercard per address. Prepaid Mastercard is issued by SUNRISE BANKS N.A., Member FDIC, pursuant to a license from Mastercard International Incorporated. Mastercard is a registered trademark of Mastercard International Incorporated.