Relief on SIPP compensation payment

Trustees of a prior drawdown scheme have made a compensation payment for investment loss to a new drawdoen scheme as a result of their poor administration. There is a further to payment to be made when calculation of a different aspect of the investment loss are agreed. The receiving scheme is a uk registered scheme but will not be claiming relief as it is a drawdoen account (nothing has actually been drawndown). I understand this is considered a 3rd party contribution. How do I claim the basic rate relief ? (Suitable income income is available).

Hi ZaphodBeeblebrox,
You will need to write in with evidence to show that no relief has been given.
HMRC, PAYE & Self Assessment BX9 1AS.
Thank you.