Final service date and charges when cancelling a pay monthly sim only plan. I want my pay monthly, sim-only plan to provide service for just 2 months and to only pay for 2 months. I am approaching the end of the first month and the cancellation charges are shown as only £1.84. So if I were to cancel just before the end of the first month, this suggests that the plan and charges will cease almost immediately. However, I have seen that I need to give 30 days notice to cancel a pay monthly plan which means that, if I want service to cease at the end of the second month, then I will have to cancel now, before the end of the first month and can expect to pay for the 30 days service during the notice period. This is confusing. Please can someone clarify when I should cancel to receive, and only pay for, 2 months of service?