I attempt to buy trading cards and it tells `Some purchases require extra security via your Steam Guard email.`. I click the "Yes" in my email and it tells `Thank you for confirming ownership of your account.` and `You can close this window and return to your original request.`. The App shows no cards purchased. When I attempt to buy the cards again, it tells me `You've made too many requests recently. Please wait and try your request again later.`. I've tried this 4 separate times over the last two days, all failing the same way.