Cannot subscribe, sends me into an infinite loop

No matter what I do, which device I use, or which ISP I use, I cannot subscribe. Sling tells me to create an account. I already have one, so I sign in. Then I try to select the Orange plan. From there, it tells me to create an account again. I don’t know what is going on, but all I want to do is subscribe. I have tried different browsers, devices, and even ISPs, but the issue persists. Is anyone else experiencing this issue?