diff --git a/LegitimateURLShortener.txt b/LegitimateURLShortener.txt
index d06af56ad..df1cb3b5c 100644
--- a/LegitimateURLShortener.txt
+++ b/LegitimateURLShortener.txt
@@ -1,5 +1,5 @@
 ! Title: ➗ Actually Legitimate URL Shortener Tool
-! Version: 1December2021v3-Beta
+! Version: 1December2021v4-Beta
 ! Expires: 2 days
 ! Description: In a world dominated by bit.ly, adf.ly, and several thousand other malware cover-up tools, this list reduces the length of URLs in a much more legitimate and transparent manner. Essentially, it automatically removes unnecessary $/& values from the URLs, making them easier to copy from the URL bar and pasting elsewhere as links. Enjoy.
 ! Homepage: https://github.com/DandelionSprout/adfilt/discussions/163
@@ -1182,7 +1182,7 @@ $removeparam=cid,domain=adshares.net|apple.com|www.microsoft.com|telenor.no|pros
 ! https://deal.no/apple-thunderbolt-to-gigabit-ethernet/cat-p/c/p4935744&ref=prisjakt (15/11/2020)
 ! https://www.amazon.com/s?k=disney+fairies&ref=nb_sb_noss_2 (27/11/2020)
 ! (https://github.com/DandelionSprout/adfilt/discussions/163#discussioncomment-488495)
-$removeparam=ref,domain=amazon.*|deal.no|expo.io|udemy.com|reddit.com|brave.com|facebook.com|arvopaperi.fi|twitch.tv|mikrobitti.fi|tivi.fi|tekniikkatalous.fi|talouselama.fi|kauppalehti.fi|uusisuomi.fi|mediuutiset.fi|sketch.com|etsy.com|geeksforgeeks.org|hs.fi|bitwarden.com|is.fi|github.io|spiegel.de|kansanuutiset.fi|bestbuy.com|shopping.google.*|target.com|bing.com|motouutiset.fi|telsu.fi|idenati.com|blogit.fi|suomi24.fi|scandinavianphoto.fi|github.com|dell.com|audible.*|webhallen.no|imdb.com|abebooks.com|eset.com|kickstarter.com|oikotie.fi|sahkovertailu.fi|jasonsavard.com|adobe.com|wormhole.app|coop.no|buzzfeed.com|megapornfreehd.com|baidu.com|semrush.com|protonvpn.com|altcustoms.com|hintaseuranta.fi
+$removeparam=ref,domain=amazon.*|deal.no|expo.io|udemy.com|reddit.com|brave.com|facebook.com|arvopaperi.fi|twitch.tv|mikrobitti.fi|tivi.fi|tekniikkatalous.fi|talouselama.fi|kauppalehti.fi|uusisuomi.fi|mediuutiset.fi|sketch.com|etsy.com|geeksforgeeks.org|hs.fi|bitwarden.com|is.fi|github.io|spiegel.de|kansanuutiset.fi|bestbuy.com|shopping.google.*|target.com|bing.com|motouutiset.fi|telsu.fi|idenati.com|blogit.fi|suomi24.fi|scandinavianphoto.fi|github.com|dell.com|audible.*|webhallen.no|imdb.com|abebooks.com|eset.com|kickstarter.com|oikotie.fi|sahkovertailu.fi|jasonsavard.com|adobe.com|wormhole.app|coop.no|buzzfeed.com|megapornfreehd.com|baidu.com|semrush.com|protonvpn.com|altcustoms.com|hintaseuranta.fi|catch.com.au
 ! https://www.comixology.com/Scooby-Doo-1997-2010/comics-series/353?irgwc=1&tid=IR-affiliate-10451&clickid=VsxVfPSSvxyOWNfwUx0Mo38MUkiXwRwR0xWjW40 (01/03/2021)
 ! (e.g. mirrored.to, tunnistautuminen.suomi.fi)
 $removeparam=tid,domain=comixology.*|gap.com|gapcanada.ca|mintmobile.com|zulily.com|clickbank.net
@@ -1205,6 +1205,8 @@ $removeparam=from,domain=sogou.com|baidu.com|jetbrains.com|bandcamp.com|apkpure.
 $removeparam=keyword,domain=ebay.*|bindright.com|lendgo.com
 ! https://github.com/DandelionSprout/adfilt/discussions/163#discussioncomment-1707764
 $removeparam=id,domain=go.skimresources.com|karkkainen.com
+! https://github.com/DandelionSprout/adfilt/discussions/163#discussioncomment-1726383
+$removeparam=offer_id,domain=surfshark.com|catch.com.au
 
 
 !! ——— Rules for heavily covered sites ———
@@ -2097,7 +2099,6 @@ $removeparam=impression_id,domain=nytimes.com|nytimes3xbfgragh.onion
 
 ! https://github.com/DandelionSprout/adfilt/discussions/163#discussioncomment-1263630
 ||surfshark.com^$removeparam=transaction_id
-||surfshark.com^$removeparam=offer_id
 
 ! https://blackfriday.com/stores/black-friday
 $removeparam=CID,domain=burpee.com|chegg.com|express.com|farmandfleet.com|marvel.com|mcafee.com|overstock.com|pepboys.com|puritan.com|rosettastone.com|samsung.com|shutterfly.com|staples.com|teleflora.com|ulta.com|virginatlantic.com|vrbo.com|walgreens.com
@@ -2623,6 +2624,9 @@ $removeparam=mv_pc,domain=fragrancenet.com
 $removeparam=term,domain=outnorth.fi
 $removeparam=/^quot;/,domain=outnorth.fi
 
+! https://github.com/DandelionSprout/adfilt/discussions/163#discussioncomment-1726383
+||catch.com.au^$removeparam=iv_
+
 !#if !env_mobile
 ! ——— Mobile ——— !
 ! ——— Entries mostly dedicated to maximising image sizes (thus poorly suited for phones) ———