Do my Pay As You Go credits expire? March 05, 2019 20:25 Updated Pay As You Go credits that you purchase will expire 180 days after the purchase date. Related articles How does the plan work? What happens if a number I call is not on the Unlimited plan? I am getting a Security Warning — “The Certificate for domain ROK Talk Plus is not valid or has expired.” Why am I getting this warning? Which countries can I call? How does the plan work? Comments 0 comments Article is closed for comments.