Supporter pack issue

Hi, I bought the 30 usd supporter pack on first day, then I just bought 10 usd credits and after I thought well I better get the next supporter pack tier, but all I can see is to buy the 60 usd, not upgrade, and the weird thing is that the 90 usd do appears as a 30 usd upgrade lol

Look: https://imgur.com/a/4Lf1GM8

Also, I had to enter the support pack page through my transactions, because if I enter through the homepage then I'm given the option to "upgrade" to the 1st supporter pack (30 usd one) based on my last 10 usd transaction. This makes no sense, I already have that and I should be able to at least pay 30 usd to upgrade from the 1st tier that I already have to the next 60 usd one.