So if you visit Kew Archives you can view the original document for free, having first located your TNA reference or address .... and can you also see the closed items in a household?
If so, does redaction only apply to online data? as I've noticed some house numbers in a street are closed although I can see the householders name if I view the same address in a 1939 streetdirectory.
If not, can you ask them to check if it's a specific name and then, if it's who you think, give evidence of the death.
I feel that paying £25 to TNA for a lookup in order to correct their database is not fair.