If you are a deferred member of the Plan, you have the right to transfer the value of your account to another pension arrangement if you want to. This can be to any pension scheme that is able to accept it.
You should always speak to an Independent Financial Advisor before transferring any benefits, as it may not be in your best interests to transfer out of the Plan. You can find more about choosing one at www.moneyhelper.org.uk/en/pensions-and-retirement/taking-your-pension/find-a-retirement-adviser
Before you make any decisions about transferring your personal account, you should also read the section pension scams, which you can find by clicking here.
If you want to investigate a transfer, you should contact the administration team, whose contact details are here.