A letter of intent does not confirm a persons identity and a cheque would not be sent until after the f&f settlement has been approved. You will note from the attached below that IPs are included in the money laundering regulations:
What businesses are included in the Money Laundering Regulations 2007?
Most UK financial businesses (banks, building societies, money transmitters, bureaux de change, cheque cashers, savings and investment firms) are covered. In addition the Regulations cover legal professionals (when undertaking some activities) accountants, tax advisers, auditors, insolvency practitioners, estate agents, casinos, high value dealers (when taking cash of 15,000 Euro or more) and trust or company service providers.
If it wasn't for the regulations it wouldn't be hard for us all to take out a loan for £15 or £20k hide it away and rake up debt of £50 or £60k then go down the IVA route and hey presto we can offer a f&f settlement with the loan we hide away!!
Thinking back now I wish I had done that!! lol