I do not doubt that your tool was not repaired and returned. It is very possible that it could not be repaired with just a blade. You indicated that you had only a date code in one handle. It has been documented that LM begin dating the builds in Nov 1992, using code 1192, and only marking the blade handle. There was no date code in the file handle. Then LM began making the File Handle in March 1993, 0393. Plier heads had changed, blade styles as well, and possible other implements modified including handles till end of production. Any combination of factors could have been a reason for the puzzle being able to repaired. It is neat they handle the warranty, as I understand it is a 25 year duration. Your tool would have fallen out of coverage in fall of 2022.Some here have reported on newer tools no longer in production, that parts or replacements are not available, they receive credit or coupon toward another new tool.
That's too bad, I would be bummed if that happened. Unfortunately there's not much you can do about it now Usually only happens when people forget to check the sentimental box. I suppose it's possibly that it was an honest mistake and two PST's got mixed up in the warranty dept.Sorry that happened