CallingMart has some special Valentine's Day deals on prepaid phone refill PINs
10% off T-mobile and AT&T Go phone refills now through Tuesday 2/22/11 with coupon code: VDAY11-10
7% Off Net10, Tracfone & Verizon refills now through Tuesday 2/22/11 with coupon code: VDAY11-7
5% Page Plus, Simple Mobile and Airvoice refills now through Tuesday 2/22/11 with Coupon Code: VDAY11-5
If you use Boost, Virgin or any other carrier not listed above you can get an extra 3% off Callingmart's already discounted prices using coupon code ca3p-1207. This coupon does not expire.
The above coupons are good on purchases of $18 or more.