I believed that I had the same issue raised a ticket and they sent me a breakdown of all my payments and it looked as though I had 3 in one month so I am just waiting for this months payment to drop in then I will know for sure if the issue is resolved, raise a ticket and they will reply promptly.
I too feel the set was a let down, I wasn't expecting massive boosts but the engine not having any at all was a huge let down hopefully its an error but I won't hold my breath
Had a quick run around on new romulas and it looks promising but I believe it may need some more play testing before release, wish the Romulan playable race was available but new content can only be a good thing.