I have sign up with this platform (where is also exchange implemented) as I was a long time holder of CREDIT (res. TERRA before it was swaped). There was a new airdrop (areound the time the old TERRA should be swap) and the mandatory step was to use the TerraBit platform. It could be usefull if you are a CREDIT holder but with limited usability. You can only exchange your CREDIT for USDT but there is a low liquidity and small volume so it is better to use different exchange (and there are some where is CREDIT listed). They support fiat gateway mainly with use of african fiat for buying and selling CREDIT, BTC, ETH and USDT. Overall it is quite useless platform which is highly dependent on one crypto - CREDIT.