OP, the “why” is that they don’t want to pay you, so they're doing everything possible not to pay. Five months is a really long time and nothing justifies it. However, they’re offering a solution now because the forum is watching. And even though they don't have video calls in their terms, and it's unusual, I'd encourage you to do it and brush it off as a minor inconvenience. Only a stupid person would deposit and play here after reading about your ordeal.