Your 18 month minimum term contact is coming to an end, if you do nothing then any discounts will be removed and yes, your price will increase dramatically, (210% does seem a bit excessive, would you have any objection to posting what you are paying now and what they want next month?)
Anyhow, yes they can charge you whatever they want, but once your minimum term ends, you are quite free to give them 30 day’s notice and cancel - which is probably what you should do. But first, do your homework and look at what alternatives are available to you, armed with that, you can call VM and negotiate some package which is acceptable, or not, and you cancel and sign up with neither company.
What exactly is it you want, no more, no less? Not interested in an O2 SIM? Then reject any offers of a ‘Volt’ deal, no matter how attractive they make it seem, don’t use a landline? Other suppliers don’t offer one, or if they do it’s a paid add on, but they don’t push it.
Oh, and lastly, albeit 18 months too late;
”I only wanted the cable broadband but the salesman urged and offered a good deal for landline phone plus simcard only.”
Always, always bear in mind that the salesman’s main objective is to get the maximum amount of money they can get from you as they can, because it’s how they make their money, all fair enough, but never, even think they are looking out for you, they’re not!
