thought on how to provide more points options that is an easy implement:
your three daily refills can be tiered. the first one is still 25 points for all three. the second tier can be 100 points or more and the 3rd+ tier can be 250+ per refill.
maybe cap at 3rd tier so not to be too expensive or OP, or let people really ham out on refills and let them find a happy middle ground per the market each day. At 100 points second tier it is about $20,000 per energy (currently priced at $29,999 per point).
Oh course this benefits those with large sums of points or money but what doesnt in this game.