Can Brand Cash be rolled over and built up across purchases? September 11, 2019 00:48 Yes! Brand Cash can be rolled over and you can choose to spend as much or as little on each purchase. Related articles How can I track all my rewards? Does Brand Cash expire? Is the 15% Brand Cash on top of PETstock Dollars? What is Brand Cash and how do I earn it? Do I earn Rewards when a product is on sale?