You have 14 days to cancel a new contract Mr Fraggle. I'd not just rely on the gaining provider led transfer alone but let PN know you are cancelling within the 14 days. See below from the Ts & Cs. As you are only 4 days in, it shouldn't be a problem.
"Cancellation
You can cancel a service anytime up to 14 calendar days after the day we accepted your order (except for BT Sport, Plusnet Protect or YouView TV from Plusnet channel packs, which you must keep for at least 30 days). If you cancel after we start to provide the service, you must pay the service subscription charge for any period that the service was made available to you and for any use of that service not covered by the subscription charge, up to the date that you told us you wanted to cancel, and return any equipment we supply that is needed to use that service. You will also need to pay any installation, connection or activation charges associated with that service - including the full cost of charges that were discounted or advertised as free as a condition of taking the service on the terms that you agreed when we accepted your order. If the service you sign-up for is an additional feature, a re-contract and/or upgrade, upon cancelling the service we may revert you to your previous contract or the closest matching service.
You can cancel your order for any equipment up to 14 calendar days after the day on which we deliver it to you or any person you nominate to receive it.
Where you cancel as set out in paragraph 10 or 11 above and are required to return any equipment to us, you must return the equipment to us (undamaged and in its original packaging) within 14 days of cancellation. Unless we agree otherwise, you are responsible for the cost of returning any equipment. We will refund anything you have already paid for the equipment, but we may reduce that refund by an appropriate amount up to the full value of the refund where the equipment is damaged, or we consider that the equipment has been used more than absolutely necessary to verify that it was fit for purpose. We may offer to collect the equipment from you and if you agree, we will charge you our reasonable costs for doing so. These rights are in addition to any other statutory rights you may have to cancel your agreement.
We will treat any failure to return the equipment within 14 days of cancelling as a serious breach and immediately end your agreement in line with paragraph 43 below ("If you break the Agreement"). If we do this and you did not pay for the equipment in full - you will be liable to pay the full price of the equipment. If you subsequently return the equipment to us, we will waive or return what you have been charged for the equipment.
If you cancel a service outside of the cancellation period set out in paragraph 10 above, you must give us the appropriate notice as detailed in paragraph 46 and you may be liable to pay early termination charges as set out in the Price guide."
