Eh, sorry to say mate, but I definitely think it's you.
I just started the instagram method myself one day ago, and today, on my second day, my click rate went up by 200%.
I got a really simple pre-lander page using WIX, just to make things look a little more "professional".
I've based mine in one of the threads posted in this forum by user "marketingtrenches"
Maybe just try to use a bit.ly link to a simple, yet user friendly pre-landing page. Once you get people on the actual landing page, make sure you've twicked with the content as well.
You should put on the header things like "Processing points", or "Verifying account". Then under that, on the description, you need to tell them what to do! In this case it will be to download one of the apps. It's important to tell them that they need to download in order to get the points or followers.
I hope this helps, because I was skeptic myself on the first day, till I got my first click on a newly generated instagram account with 300 followers.
I've attached my pic. This is my second day doing it, and I've got 19 clicks so far running only one instagram account.