On today's CoinMarketRecap with Connor Sephton, Congress gave Sam Bankman-Fried a deadline to confirm he'll testify about FTX's collapse — did he respond? Shark Tank star Kevin O'Leary confirms how much he lost when the exchange went bankrupt. Ethereum developers reveal when withdrawals of staked ETH will open — ending a two-year wait. Also coming up — Amber Group cuts jobs and sponsorship deals as fears grow over the company's future. We'll find out why Coinbase is attacking Tether. Confusion as a DAO's plans to donate 100 ETH to an "on-chain crypto sleuth" are suddenly canceled. And MasterClass launches a new course about cryptocurrencies and blockchain — we'll take a sneak peek. You can follow us on Twitter — @ConnorSephton and @CoinMarketCap.