But in May, Union54 began experiencing some operational issues with its product, resulting in the temporary suspension of its Bank Identification Number (BIN), the first four to six numbers on a payment card that identifies a card issuer. They attributed the virtual dollar card service disruption to an update from a card partner — which happens to be Union54 — without citing a definite recommencement time. This April, when we covered Union54, whose API allows companies to issue debit cards to their customers and employees without needing a bank or a third-party processor, it had just raised a seed extension, bringing its total seed round to $15 million (Tiger Global led both rounds). Many have begun searching for alternative options, which include Sudo Africa, another card-issuing platform and other fintechs, which claim to be unaffected by Union54’s downtime (as a result of using another provider), such as Chipper Cash, Mono and Bitmama.