If you have been enrolled to the scheme automatically and remain in the scheme you will continue to benefit from contributions by both yourself and your employer.
You do however have the option to leave the pension scheme, known as opting out. You can exercise this option within one month of your enrolment date or one month from receiving your enrolment notification.
If you opt out within this time, any contributions you have made will be returned to you.
Please do bear in mind that by opting out you will stop saving funds for your retirement and you will potentially lose the value of your employer pension contributions.