Wait, they let you purchase them but won't let you sell them? What broker is this? I know that transferring pennies is hard to do. There was a broker, and I think it might have been Interactive Brokers but don't quote me, who used to take penny transfers. Don't know who does now. Try asking on this thread: https://investorshub.advfn.com/Best-OTC-Brokers-BROKER-15250/