water bill

This is just a curious inquiry to all of you in Anna Maria land. We received a water bill in January for $950. Our usual bill is about $50. No one was staying in the house that month. We had a plumber check it out and she could find no leaks. Today I read that there are a number of "false bills" in the Tampa area related to defective meters and "software billing problems". Water utilities are denying claims. Do any of you have similar problems ? Maybe we've been thirsty?