Beneficiary updating

[Skramy]

One of my 3 beneficiaries has incorrect SS number. Last digit is incorrect. Can't correct it online. Called TSP - gal said she can't access SS numbers either.
Is it possible to delete ​one beneficiary online, and then 'add' the same person with the correct info?

Note: Last time I updated bene's was 2019. I mailed in a TSP-3 form. My photo copy of that form has correct info.

 

[tsptalk]

So the TSP screwed up the SSN? Wow.

I would only be speculating when saying it should be possible to delete / add bene's as needed online, but I haven't tried that so not much help.

 

[Skramy]

Well, here I am a year later. (see my top post). I could try deleting the entire incorrect bene, then re-enter correct info.
But, being there are THREE bene's, will that mess things up since 33% plus 33% doesn't equal 100% ?
Or, should I enter the correct bene info as a 4th, and then delete the incorrect bene?
Or, would I have to delete all three - then re-enter the three?
Anyone have a similar problem?

 

[tsptalk]

See if AI helps. I asked Grok your 1st post question...

https://x.com/i/grok/share/DMOGPXg7s0uYpUVC63leMmBV1