To apply for a Tembo HomeSaver Cash ISA, you'll need to:
be at least 18 years old
be a UK resident for tax purposes
have a National Insurance number
have a valid email address
deposit a minimum of £10 to open a new account,
you'll need to have at least £10 remaining in this year's £20,000 ISA allowance, otherwise you'll need to wait until the next tax year to open one.