No, it's true. Illegal immigrants are not entitled to anything.
@MagicThanks People conflate the terms 'illegal immigrant' and 'asylum seeker' all the time. They are not the same. But to be fair, it is confusing. If you arrive on a small boat, then you have entered the country illegally (ie. your entry has not been authorised in advance) but if you claim asylum immediately, as 99% of small boat arrivals did last year, you become an asylum seeker, which means you have temporary lawful permission to remain in the UK while your claim is assessed.
When you get off a small boat, you are processed and fingerprinted etc, normally at Manston in Kent. Unaccompanied asylum-seeking children (UASCs) normally become the responsibility of Kent County Council in the first instance, and there is something called the National Transfer Scheme which aims to disperse them to other local authorities to ease the pressure.
Asylum seekers receive £1.42 per day if they get put in accommodation where meals are provided.
They get £7.03 per day if they are in self-catered accommodation and need to buy their own food.
This money is put on something called an ASPEN card (Asylum Support Enablement card), a bit like a debit card, and spending is monitored by the Home Office with controls on how it can be spent. It can't be used at swimming pools or tourist attractions, for example. Only for buying essentials. However, it can be used to withdraw cash so it's arguable how useful those restrictions are.
They cannot work (bar some rare exceptions) or claim any other cash benefits during the time they are an asylum seeker, though they can access medical care via the NHS. If their claim is successful and they are granted refugee status, then they become entitled to other benefits.
But illegal immigrants in the way most people understand them - for example, someone who has overstayed a visa, or come in on the back of a lorry and absconded and is therefore flying under the radar - are obviously not entitled to anything at all.