Your Pave membership fee is reported to credit reference agencies as a credit repayment. Your membership plan is structured as a 12-month contract, with each monthly membership fee treated as a repayment on this contract, which demonstrates that you are capable of making payments on time, potentially boosting your credit score. It is available on both Pave Lite and Pave Plus plans.
The boost to your credit score is not guaranteed, as your other activities (say, missing a credit card repayment or getting a CCJ) could undermine the benefit of using Pave.