according to my knowledge there are only five (5) suddavasa brahma worlds. not 7. plz be kind enough to consider deeply about this matter & take actions to re correct this error as soon as possible. you can refer, books "Abhidarma margaya" or "abidarmaye mulika iganvim" of rerukane chandavimala maha nahimi for further details.
I have written this article accordingly 'අභිධර්ම මාර්ගය'. Please refer page number 151 to 153 for more information.