just one last question..... Is base reward and the amount I can claim not the same?....If not, then can I increase my free claim amount from 130 sats to higher amounts by wagering etc
Base reward is fixed at the BTC equivalent of $0.002 unless you don't meet the minimum requirements (wagering, jackpots, purchasing lottery tickets, and balance calculation) in which case base reward can be reduced by up to half.
You can increase the amount you get to claim by qualifying for BTC Bonus or redeeming Reward Points. Both of these increases are calculated from whatever your base reward is independent of each other.