This is a welcome step in the right direction, but a restriction on advertising time does not go far enough.
These loans are targeted at financially vulnerable, often desperate people, and companies must be restricted - by regulation - from giving loans to those who simply cannot afford to repay them.
Cuts to trading standards have restricted the ability of officers to crack down on illegal loan sharks. Unison hopes the same mistakes will not be made with the new Financial Conduct Authority.
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The PM confirmed an end to the country's existing trading arrangements as she outlined her 12 priorities for negotiating Britain's EU exit.
Theresa May has pledged to invoke Article 50 by the end of March, beginning the Brexit process. Here is an A to Z of what you need to know.
A judge said those bringing the case can remain anonymous after they said they feared for their safety if their identities were revealed.