US Cellular has begun tempting family plan switchers with a pre-paid $300 MasterCard. The offer seems simple enough, switch your family from your current carrier to US Cellular and get the money. Of course, as we often find with special offers — this one does come with some fine print that you will likely want to know about upfront.

According to US Cellular, the family switching needs to have a minimum of two lines (and they have to be existing and active on another carrier). The carrier has a decent selection of available smartphones, many of which are running Android. Some of the current US Cellular lineup includes the Galaxy Note II for $349.99 and the 16GB Galaxy S III for $149.99.

Some of the less expensive options include the Galaxy S II (which recently received Jelly Bean), Galaxy Axiom and the HTC One V — all of which are selling for $99.99 on a two-year agreement. And of course, there are still some even lower priced such as the LG Splendor and Huawei Ascend Y, both of which are one penny on a two-year agreement.

Specific phones aside, lets get into the fine print. Those switching will need to have at least one of the two lines be a smartphone with data plan, customers must register for My Account within 14 days of activation, the online redemption form must be submitted prior to May 1, 2013 and the offer expires on April 1, 2013. Finally, the $300 MasterCard can take up to 10-12 weeks to arrive and your account must be in good standing to get it. With that, if you had been considering a switch to US Cellular, now seems like as good a time as any to give that some further thought.

[via US Cellular]