Well, I think it's fixed now!? And it was a matter of "cached," "cookies," and/or logout (?ç). I hope you managed to fix it. I was following along because I always bet on sports on CR, and had never seen that error or message on the screen before.
No, the problem is not solved, and yes, of course I tried deleting cookies and cache, tried with and without VPN. I even tried another browser.
Apparently, there's nothing else to do but contact customer support by email. I'll report the results later.
Hi Xandry, CR rep Anders here. I believe the maximum digit length when placing a sports wager is 6 so if you try again using