People will no longer be charged for calling
Abolishment of the helpline charges - which cost claimants up to 55p a minute - marks a victory for Labour leader Jeremy Corbyn who challenged Theresa May over the issue at Prime Minister's Questions last week.
But Mrs May has refused Mr Corbyn's call to halt the roll-out of Universal Credit, insisting the new benefits system "was working".
Universal Credit, which merges six benefit payments into one, has been plagued by criticism since it was created by the former work and pensions secretary Iain Duncan Smith.
Critics claim flaws in the scheme - in particular the six-week wait for initial payment - are leaving people destitute, forcing vulnerable families to food banks and facing the threat of eviction.
