As far as I am aware, there are no major scam accusations against Coinmama, so I don't think you are likely to lose your money if you use them.
However, their privacy policy is absolutely atrocious:
Registering through our website: When you register to the Services through our website, we may collect from you the following information: full name, email address, phone number, full home address (country, state/province, zip code, city, street, house number), gender, date of birth, ID information (issuing country, number, expiry date, etc.), images of identification documents, images of proof-of-residence (utility bills, bank/credit card statements, government-issued letters), images of yourself (selfie photos), information required for our compliance with regulatory Know Your Customer requirements (e.g., contents of KYC Questionnaire and Service Applicant Declaration Form [estimated amount of intended activity, purpose of buying virtual currency, source of the funds used to buy virtual currency, employment status, profession and job title or position, field of activity of employing company or own business, name of employing company or own business, URL to the website of employing company or own business, signature sample, ultimate beneficiary of purchased virtual currency], etc.), as well as any other information you agreed to share with us.
We may share Personal Information with the following recipients: (i) our subsidiaries; (ii) affiliated companies; (iii) subcontractors and other third-party service providers; (iv) auditors or advisers of our business processes; and (v) any potential purchasers or investors in the Company.
In addition to the purposes listed in this Privacy Policy, we may share Personal Information with our recipients for any of the following purposes: (i) storing or processing Personal Information on our behalf (e.g., cloud computing service providers); (ii) processing such information to assist us with our business operations; (iii) performing research, technical diagnostics, personalization and analytics; and (iv) communicating promotional and informational materials, in accordance with our marketing policy (see below under "Marketing").
Seriously. Just look at that. The TL;DR is essentially you have to tell them
all your personal information, your employment status and your employer's details, submit selfies and photos of your ID, tell them where your money is coming from, why you are buying bitcoin, what you are planning to do with it, who or where you are going to send it. They will share that information with pretty much any third party they please. Absolutely disgusting disregard for their customers and very shady. Turns out they also track your bitcoin after you have withdrawn them, and if they don't like how you are spending
your own money, they will shut down your account:
https://www.reddit.com/r/Bitcoin/comments/bdr9nw/coinmama_is_a_nosey_bitch_tracking_your_coin/There are plenty of safer and privacy respecting peer to peer trading platforms which I would suggest checking out first:
https://medium.com/@cointastical/p2p-otc-exchanges-e-g-localbitcoins-bisq-hodlhodl-etc-20f293a2c72e