Hello,
A friend of mine became Cav by ranken 5 6* to r3. As soon as he got the mail he became cav he wanted to start playing BG. But he can't enter a fight (see the picture, he keeps pressing ranked match but nothing happens)

After that he completed acts like how to become cav the original way, in hope he then could enter BG. But still te same problem.
Anyone had the same issue and get it solved, or knows what the problem could be?
Reaching out to the support team resulted in 0.0 they don't know what the issue is, told him to look at the forums and bug report board but knowhere this bug can be found.