Not with wireless. That depends on geography, interference, temporary usage peaks etc. Much more variable, limited and costly than a "static" line.
If you can’t give people 25Mbit connections with your wireless technology, don’t sell them 25MBit connections.
But coincidentally typically the stuff where the ISPs have all these terribly difficult problems are the services that refuse to pay their extra fees. Kind of like what happens to restaurants that don’t pay the protection fee.