I got one the same as yours it seems, telling me to check standards toys and linking to some standard about lead content in toys... for a pastic battery cell holder. I assume because it's listed under   Toys & Models > RC & Robots > Parts & accessories > Batteries and that's probably all the "intelligence" their process has. Maybe comcom has been applying some pressure about dangerous toys being drop-shipped or something so they are bulk sending these to cover their a**.    

The search has been bad for so long. Searching title and description should be the standard way, people shouldn't have to cram stuff into a title to get their listing found. A good ranking algorithm, smart tokenisation, normalising, and stemming -  good full text search isn't that hard, there are solutions out there.  Doesn't matter if it returns a thousand, ten thousand, a million results as long as the ranking makes the first 20 are the ones you were actually looking for.  

My post has gone to pending beecause of the link, here it is screenshotted.

Go to the old sold items page https://www.trademe.co.nz/MyTradeMe/Sell/Sold.aspx click the feedback number of the buyer, and you should be able to see your feedback and an edit link.    

I assume it is all MVL listings, not just Max's Gary-NZStocked? Better add a note to my "you didn't choose what you wanted" email :/  

Works for me in 131.0.6778.85 desktop chrome. I don't use the app.  

Works for me, Chrome desktop 129.0.6668.89    

Works for me (just checked the first random listing with choices I could find, not one of yours specifically). It is not uncommon (at all) for customers to just leave it as the first-selected-option.  For that reason I make all my listings have the first option be "Default / Random Choice", that way    1. I know they did that, and can check with them what they actually wanted   2. if they don't respond (more often than not!) then I can quite rightly just send them what I think is best/have most of/reach first

Most likely explanation is you made a typo, selected a different product (bag vs box), or a different carrier (NZ Post vs Aramex). If you post the dimensions, weight, source city and destination city I can see what the shipping thing results for me.

Just block/filter their email address and forget about it. If they had apologised and offered a refund straight up and changed their listing description appropriate for future buyers, then it would be different, but they clearly tried to pass it off as not a problem and only have decided to refund after you red faced them.