Views: 747 Activate Wyndham Rewards Earner Cards : How to Activate Login Wyndham Rewards Cards? To activate Wyndham Rewards Earner Cards, login into www.barclaycardus.com/servicing/activate and Select “Activate my card now” and complete the required fields. … Continue reading Activate Wyndham Rewards Earner Cards : How to Activate Login Wyndham Rewards Cards?