I've used Karaoke Version for years because of their quality songs and good selection. However, one of the first songs I bought was Bad Romance by Lady Gaga. Since it was the only version I mistakenly believed it was the album version--it wasn't (in fact, today I found out it was the Radio Edit, which is a version I had never heard before).
First problem: I left a comment saying that it didn't match the album version I owned and a moderator replied telling me that it was the "original" version and that I was, in essence, wrong. I brushed off the rudeness, heaved a sigh at spending money on a song I couldn't use, and continued using the site without incident.
Second problem: Recently I received a notice that there was a newly remastered version of it and, thinking that maybe the new version would match the album version, I downloaded it again. It was basically the same as the older version and I left a comment saying that I didn't see a difference between the versions and that "This track has been 100% unusable for me since I bought it, and the update didn't fix a thing. Generally I love Karaoke Version, but this purchase was a big regret for me." The comment was not published, but I received a communication from Support quoting my comment and offering to swap out that song for another one. I was happy and surprised that they would do this (they didn't do anything like that in 2013 when I first commented) and replied with a song I'd like to have swapped.
Third problem: Today I received a response from the same support staff saying: "I have just notice that you have ordered "Bad Romance" in 2013! So you got the time to download and use the track. Why do not you contacted me before?" The song was, of course, not swapped out and on top of that the staff member is blaming me for... their staff not contacting me in 2013 when I first complained? For the staff member not reading my comment properly and making the wrong assumption that I hadn't downloaded the song, even though it wouldn't make sense for me not to have done so? So basically I get chided for their own incompetence, which is rude and unacceptable behavior from customer support in my opinion.
Fourth problem: I wrote a second comment that was published on the page. In it, I say that I don't know what version they were using but that it is significantly different from the album and music video versions. Despite me saying which versions I was referencing, the moderator who responded said, " Perhaps there is another version that you are thinking of?" which, using the most charitable reading, means that they didn't actually read my response and at worst gaslights me by implying that their version is or matches the album and music video versions and I'm wrong about it not fitting those versions.
At best, this company's support staff has an inadequate understanding of English for dealing in an appropriate manner with their English-speaking customers. But whatever the reason behind the unacceptable way I was treated, my experience with their staff is that they are rude, incompetent, and jump to blaming the customer for problems they don't understand. Hopefully the next karaoke song site I find will have more respect for their customers.