Bitstamp is currently is open to most US and European citizens. Meanwhile, the seller should never release the escrow before confirming the payment received by the buyer. It is a popular site with high trading volume. CoinMama focuses on carrying out transactions via credit card. Signup to SpectroCoin. On the other hand, the digital cash represents tokens such as Bitcoin, Ethereum, etc. Well, now that people are getting used to this blockchain and bitcoin technology, numerous platforms are evolving day by day to help people in several ways.