Deep Tide TechFlow News, on December 24, according to CoinDesk, the UK Financial Conduct Authority (FCA) has approved Sling Money, a crypto payment application under Avian Labs, to provide crypto services in the UK, making it one of the crypto payment companies to receive regulatory support from major jurisdictions. The application is currently in a closed testing phase in the UK, having previously obtained regulatory approvals from the Netherlands and the United States.