MK Cellular
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15 Day Excellence Guarantee


We're confident you'll be satisfied with our network, products and customer service. That's why we offer the 15-Day Guarantee. If you find we're not right for you, simply return your phone within 15 days and pay only for the service used. It's one part of the Excellence Guarantee – only from U.S. Cellular®.

Within the first 15 days of your new service agreement, you have the opportunity to change your:
  • Calling Plans
  • Equipment
  • Features
If you're not completely satisfied and decide to discontinue your service, you'll receive a full refund and pay for only the air time minutes you've used.


15-Day Guarantee Policy
  • Equipment must be returned prior to discontinuing service in order for the early termination fee to be waived (see phone requirements below)
  • Activation fee (if applicable) will be refunded
  • Customer is responsible to pay for a pro-rated amount for monthly access fee, features and usage charges, roaming, long distance, fees and taxes and subject to a restocking fee


Equipment Return
  • You can return or exchange your equipment one time during the first 15 days of service, subject to a restocking fee. To return or exchange, you must provide a valid mkCellular receipt. After 15 days, the manufacturer's limited warranty applies (see location for details). This policy applies only to equipment purchased through a mkCellular Authorized Agent store only. Any devices and accessories purchased through mkCellular must be exchanged or returned to any mkCellular location
  • All wireless phone returns must be in good condition and accompanied with original packaging, battery, accessories and instruction manuals
  • Refunds or exchanges will not be accepted for used or clearance merchandise
  • Refunds will be credited to your U.S. Cellular account or the original payment method*
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  • Devices
    • iPhone
    • Android
    • Basic Phones
    • Tablets
    • Connected Devices
    • Home Solutions
  • Locations
    • Columbus
    • Watertown
    • Lake Mills
    • Oconomowoc
    • Jefferson
    • Fort Atkinson
    • Elkhorn
    • Lake Geneva
    • Pewaukee
    • New Berlin
    • Mukwonago
    • Delavan
    • Brookfield
    • Whitewater
    • Beloit
    • Kenosha
  • Business
  • Careers
  • About Us
    • Accolades
    • Testimonials
  • Support
    • Contact Us
    • Customer Survey
    • Invoice Payments
    • My Account
    • Coverage Maps
    • 15 Day Return
  • High Speed Internet