How to vote in The Voice UK 2018 semi-finals and how the final line-up for is decided

THE pressure is on as the remaining acts on The Voice battle it out for a place in the final.
Find out how you can vote for your favourite act ahead of tonight's semi-finals...
How can I vote in The Voice 2018 semi-finals?
Viewers can vote for their favourite act online, by phone or via the app.
Calls cost 15p each from mobiles, landline rates will be higher.
Viwers can also vote via The Voice UK app which is available to download to iOS and Android devices.
To vote online fans must register or login with a BBC iD to access The Voice UK vote page.
It is FREE to vote online or via the app.
What are Mobile Short Dial Codes (MSDCs) and how can I use them to vote?
Mobile Short Dial Codes (MSDCs) are the numbers to call (not text) from UK mobile phones - excluding The Isle Of Man and Channel Islands.
When using these codes callers are charged a guaranteed fixed price for the call (15p for The Voice UK voting) regardless of their UK mobile network provider.
The MSDC numbers are shorter than a normal telephone number, normally 5-7 digits.
This makes calling cheaper as the normal access charge when ringing premium rate numbers does not apply.
To vote using an MSDC simply dial the short number shown on screen for your favourite contestant, when the vote is open.
There is one number allocated to each contestant from the 090 range.
If you try to call when the vote is closed you will still NOT be charged.
The numbers allocated for each contestant change each week.
You can’t text/SMS to the Mobile Short Dial Code.
How will The Voice 2018 finalists be chosen?
The Voice 2018 live semi final will take place on Saturday March 31.
The four judges each have two acts remaining.
The judges will have no say on who goes through.
The public will vote to decide the four contestants who will perform in the live final.