Please let me preface this with I wasn't sure where exactly to put it as it's not 100% a bug, but an actual issue on my (and maybe others') parts with my cheap mouse. And if this does belong in another area, please let me know.

Now then, onto business on how to maybe fix this for tab openers such as myself.

Perhaps this is just a issue on my end with my own mouse, but there are times when I click on a link, it'll open two or more of the same page. I do this with everything in my everyday life for links from Facebook to when I'm purchasing an item in the various holiday shops and such on here. Recently, I bought an item in the quest shop and ended up receiving a duplicate of it (not asking for a reversal, I can man up to my mistake and just sell off the extra item for sP). But this brings me to my idea.

In the NPC shops (and user shops if you're quite quick) you have to wait 5 seconds and 1 second respectfully in order to make another purchase. Is there any way we could make that same thing happen for the quest shops? Something akin to a 2 second wait where if someone is clicking with their middle button and their mouse isn't top of the line and sometimes opens a second tab in conjunction with their first and accidentally buy the same item twice?

Personally, no support. I hate time delay in every shop we have it in. If it looks like a problem with your mouse (happening on other pages and not just subeta) maybe try fixing this first?

No Support. I loathe every single shop time delay on this site with a burning passion.

If you don't actually purchase items in the way you normally do, and just click on them, do you get duplicates then? Because for me, the tab method is my method for NOT getting duplicates and it always works.

Which browser are you using? I'm using Chrome, and for the last month or so I've had a lot of holiday and static item shops around the site give me double purchases, even when I open the 'buy' button in a new tab, or when I use the buttons on my laptop. If it's the same for you, I don't think there's anything the site can do to prevent it happening.

Yeah, I'm using Chrome as well. And if it's more a Chrome issue more than anything else, then perhaps I'll just have to deal with it and try and be careful. Either way, it doesn't look like there was any support for the idea anyways.

I've just started using Firefox to buy quest shop items etc, which is a pain (especially since I keep forgetting). There's a handful of stuff on site that started being weird for me using Chrome at around the same time, and I've no idea when it'll all get sorted one way or the other.

If you are using a CustomCSS so there might be a code that causing this double clicking.. try to buy something from the Quest Shop without any CustomCSS

And for the suggestion, I really don't like waiting time, I see it as a waste of time 😅

I've already tried that, and I still get double purchases (plus, it works perfectly in Firefox with the CSS). I've cleared my cache, I've cleared my cookies, I've disabled my add-ons, and it still happens.

I did some quick google search, it seems like the mouse drivers and Chrome are not getting along, so they suggested to remove them and reinstall an updated drivers.