Update (after posting on Bitcointalk  the other night):

On 2021-09-04 07:21, BetMoose Support wrote:
> Hi there,
>
> I had our dev team look more deeply into this and I believe they have
> found the issue. Can you please confirm the IP address you were using
> when placing for verification? We will be able to reinstate it in this
> case.
>
> BM