we do not share your data with anyone and there are many ways to control the visibility and storage life of your data here.
but the internet is a public space and you should always assume your data could be compromised.
be smart with your password, use tor or a vpn, and use pgp for sensitive communications.
just go to transaxe support at https://littlebiggy.org/viewSubject/p/4760120 and hit chat
give them your order id or the btc address you sent to
fear not bitcoin payments are impossible to lose.→