Make the most of your money
Get our free weekly email full of the latest deals, guides and money saving tips.
A new iPhone setting could eat into your data allowance. This could lead to anyone using iOS9 receiving huge bills or being cut off from using the web if you don't have an unlimited internet data package.
The problem could affect anybody who upgraded to the new Apple iOS 9 operating system. This applies to all devices with 3G/4G enabled that run iOS9, not just the new iPhone 6s or iPhone 6s Plus.
Apple says more than half of users worldwide have upgraded to iOS9 since it was made available on September 16th.
The feature that can cost you a fortune is called Wi-Fi Assist and basically switches your mobile from a weak wi-fi signal to a cellular 3G/4G data service automatically.
If you're on a mobile tariff which doesn't include unlimited data, it's crucial that you check your settings, otherwise you could get a very nasty surprise when your mobile bill comes through.
The trouble is that it may eat up your data plan without you even knowing it, and may land you with an astronomical bill if you're abroad.
The good news is you can TURN IT OFF.
Get our free weekly email full of the latest deals, guides and money saving tips.
You can find Wi-Fi Assist in settings under Settings - Mobile Data and then scroll right to the bottom of the screen, where you have the option to switch it off.
While this is a relatively new problem, many iPhone users have already been caught out.
This guide explains what you should do if your pre-payment meter for gas or electricity runs out of credit....
Have you received a letter from Phillips & Cohen Associates. In this guide we'll show you a common letter they send, the tactics they use and how to deal with...
Have you received a letter threatening an attachment of earnings. In this guide we explore what an attachment of earnings order is, how they work and how to defend...
Join 100,000s of Money Advice Onliners who read our WEEKLY email. Get our round up of ALL the best money saving tips, best buys, discount vouchers and competitions. Don't miss out!
We hereby promise to be responsible emailers.