If you have paid into a pension and seen that this has been listed on your pay slip for the first time this month. You will need to wait until they have received correspondence from Nest.
Arc cannot opt you out from this. You must contact nest directly. To do so, follow: Opt out HERE
Arc can only refund the contributions once we receive a notification from Nest and if you opt out within the opt out period (one month).
If you are still unsure, please 'submit a form' and we will get back to you asap.