Sky Mobile is hiking bills for up to one million customers from this Friday.

If you're out of contract, your monthly bill will rise by £1.50 a month, which adds up to £18 extra over 12 months, from February 14. This will affect both pay monthly and SIM-only customers. The price of calls to the EU and EEA will rise by 4p to 25p per minute, while calls to the rest of the will increase by £1 to £3.50 per minute.

The cost of sending an international text message outside of Europe will rise by 20p to 95p. The cost of sending picture messages to UK phone numbers is going up by 15p to 95p. International Saver Plan customers will see a price rise of £1 to £4 per month. Those who are still within their contract will not see any price change.

reports that up to one million Sky Mobile customers are out of contract and will therefore see their monthly bill increase. A Sky Mobile spokesperson said: "We always aim to provide an outstanding service alongside some of the best value plans on the market. To ensure we can continue to invest in our services and deliver a great experience, the majority of our out of contract customers will see their monthly bill increase by £1.50 in February."

It comes as broadband and mobile providers have been from using mid-contract price rises that are linked to inflation - instead, customers must now be told in "pounds and pence" how much their contract will rise by each year. Sky Mobile was one firm that did not previously use inflation-linked price rises. Last year, it raised prices by £1 to £3 a month, depending on your data plan.

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If you're coming to the end of your contract, compare prices elsewhere to see what other deals are available. Take a look at how many minutes, texts and how much data you currently use, so you can find similar plans that suit your needs.

For broadband, look at your current speed and if you need this fast of a deal. You may find you're actually paying too much right now for allowances or speeds you're not using. If you've found a cheaper deal, you can switch to this if you're out of contract.

Alternatively, you can try to haggle down your current provider - this generally has more success if you're coming near to the end of your contract. When haggling, explain the better deals you've seen elsewhere then ask if the company can match or beat that price.

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