Solo Card, introduced in 1997, is a debit card available in the United Kingdom. It was launched as a sister card to Switch (now known as Maestro) and primarily caters to customers who may not qualify for a Maestro card. This includes minors and individuals with less-than-ideal credit histories, providing them with access to their current accounts. Solo Card is designed to be used on deposit accounts, offering a convenient way for customers to manage their finances. Despite some sources suggesting its decommissioning in 2011, Solo Card is stillaccepted by online merchants, and individuals can apply for the card at UK banks. It operates within the Maestro card system, providing additional security and benefits to users. While many merchants trust and utilize the Maestro system, it's essential to note that some online casinos may not accept Solo Card due to age verification concerns, given that it can be issued to minors. Therefore, it's advisable to check with your bank and the specific policies of online merchants regarding Solo Card acceptance.