Common user complaints about sweepstakes casino apps include connectivity issues, where players experience app crashes or slow loading times. Users often encounter difficulties with coin redemption processes, particularly when converting coins to prizes or cash. Another frequent issue is the delayed responses from customer support, which can be frustrating when issues need swift resolution. Some users also report problems with account verification procedures, which can be tedious and require multiple submissions of documents. Lastly, players occasionally feel that promotional bonuses are misleading or not as rewarding as advertised.