I just got signed up for GW and per their Help Center, there is a 2.9% fee for CC payments. What am I missing?

Fees

It's free to send money directly from your bank account or using your Google Wallet Balance. There's a flat fee of 2.9% per transaction (minimum $0.30) to send money using a credit or debit card. Receiving money is always free regardless of the funding source the sender chooses.