Shadow immigration minister David Hanson said Theresa May's immigration system "lurches from one gimmick to another with little effect" following reports people were wrongly sent text messages accusing them of being illegal immigrants.
Mr Hanson said: “The reports that the Government has allowed a private contractor to send British citizens text message telling them to leave the country demonstrates once more just how shambolic and incompetent the Home Office’s border police is under Theresa May.
“Yet again, like the offensive and inappropriate ad vans, the Government will be using taxpayer’s hard earned money to offend and alienate its own citizens.”
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After the PM triggers Article 50, Britain will need the other EU nations to agree to deals. Gibraltar could be key to Spain's demands.