Starting April 23rd through April 26th, Sprint customers who port in their Wireless number to T-Mobile at a Costco/Wireless Advocates or Car Toys location may be eligible for a $35 bill credit.  This port-in credit is in addition to the activation fee waiver Costco members receive as part of their membership benefit.  This offer is available only to Sprint customers who port-in their numbers to T-Mobile.  Remember, the offer is only valid in Wireless Advocates (Costco) and … [read full article]