Its reserve deposit account offers variable rates ranging from 3.25 per cent for £1 to 4.5 per cent for £50,000. If you are depositing £10,000, for example, you can get a variable rate of 4 per cent.

You are entitled to one withdrawal per calendar month and if you exceed this, far lower demand deposit rates, from between 0.8 per cent to 1.25 per cent, then apply.

A minimum of £3,000 is required to avail of its High Rate 30 deposit accounts. One of these, Alpha High Rate 30, is suitable for amounts between £3,000 and £25,000 and money can be withdrawn once 30 days' notice is given. For those with between £15,000 and £24,999 to deposit there is a variable rate of 5.37 per cent available.