EE, O2 and Vodafone have confirmed that their contract prices will be increasing, although Brexit isn't to blame this time.
Instead, the three networks are upping prices in line with the Retail Prices Index (RPI) rate of inflation.
EE, which will implement the increases on 30 April, has confirmed to V3 that its pay monthly, SIM-only and mobile broadband customers can expect to pay an extra 2.5 per cent per month, following December 2016's RPI rate of inflation. This, according to the network, will work out at less than 80p per month for most.
An EE spokesperson said: "As the UK's biggest and fastest mobile network we work hard to offer our customers great value. Like many service providers, our Pay Monthly plans increase by RPI annually.
"This year our customers will see a typical rise of less than 80p a month. We're currently contacting our customers to remind them this will take effect from 30th March 2017."
O2 is upping its prices by 2.6 per cent, using January 2017's higher figure, but says for those on its 'most popular contract' - which comes with just 1GB data - users will be paying around 46p extra per month.
However, the 2.6 per cent increase applies to all O2 pay monthly, SIM-only, O2 fresh, mobile broadband and SMB Business contract customers.
"We'll be adjusting our monthly tariff charges by 2.6 per cent in line with the RPI change that applies to our contracts each year - some other companies offering communication services have increased their monthly rentals by up to 9 per cent," an O2 spokesperson told V3.
"This adjustment means an extra charge of 46 pence per month for customers on our most popular pay monthly tariff and we'll contact customers next week to let them know the change will be reflected from their April bill.
"We'll continue to invest in our network and the services that matter to our customers while still offering great value for money.
Vodafone has said its prices will rise in line with March's RPI, which hasn't been announced yet, but has confirmed that pay monthly customers who joined or upgraded from 6 May 2016 will be affected.
A spokesperson said: "Any customer that took a pay monthly plan on or after the 5 May 2016, will have an annual price adjustment in April, in line with the March Retail Price Index (RPI)."
Three has yet to confirm whether it'll also be increasing its prices, but we have asked the question.
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