British Financial Conduct Authority has warned the public that the broker United Markets 4 You (UM4U) is not regulated.
UM4U is a cryptocurrencies broker that is run by a company Options Tech based in Commonwealth of Dominica.
However, UM4U also has offices in Great Britain. The FCA has found that the broker is allowing trading in a way that is subject to regulation, therefore it needs a licence.
But United Markets 4 You is not regulated, therefore the FCA has placed it on its blacklist.
For your trading use regulated brokers only.