coinmama is seen as the fastest options to buy crypto currency if the user or customer do not have time for long verification process I think coinmama is the best crypto exchange platform. coinmama is very recognized all over the world, with over 200million customer and over 188 countries uses this platform. it supplies a simple brokage service it sell a varieties of crypto currency with the use of a credit cards. with a super quick verification for user and customers which only take 30 minutes. they only problem is that this process will cost high fee more than other exchange,I can only recommend it for users who are looking forward to buy crypto currency as quick as possib .l epossible. The project has a good security system that will be fine by me.