For those (like me) wondering why their Monday's earnings haven't been credited yet, I just got this reply from support:

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Hello,

Thank you for being with Bitcoin Trader!

Our system is currently under maintenance. Earnings will be credited once this is done, in a few hours time from now.

Sorry for the inconvenience.

With best regards,
Bitcoin Trader Support
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Aff. link: https://bitcoin-trader.biz/?ref= [ref removed]