Final answer:
If a member doesn't have their PC card and doesn't know the number, they can often provide alternative ID at the store or contact the loyalty program through the company's web address to earn points.
Step-by-step explanation:
If the PC card is not present and the guest does not know their card number, a member can usually earn their points by providing alternative identification, such as a phone number or email associated with the account, to the customer service representative at the store or the help desk.
If this is not possible, the guest could be advised to save their receipt and contact the customer loyalty program via the web address provided by the company. They could then add the points to their account retrospectively once their information is verified.
The web address to manage accounts for loyalty programs is typically found on the company's official website or on the receipts of purchases. It's essential for the customer to reach out as soon as possible to ensure they have all the necessary details to allocate their points correctly.