In the event of death before NPD the usual payment is the actuarial value of the pension payable,subject to a maximum of 4 times final remuneration at your leaving date. Depending on the scheme rules, the value of the AVCs and your oridinary employee contriobutions may be payable in addition, with or without interest. In any case AVCs can be returned.
Also the deferred pension may be provided in the form of a spouses pension, instead of a lump sum, which can be enchanced by the AVCs.