The primary cardmember on the account must activate the new Ultamate Rewards® Mastercard online or by phone by calling 1-866-489-3455. To activate your Ulta Beauty Rewards™ Mastercard, follow these steps: Online: Visit the Ulta Beauty Rewards™ Mastercard® Credit … Continue reading Ulta Mastercard Login Activate: Login to Pay Bill for Ulta Mastercard by Cash or Phone