State officials are warning of a scam by a group posing as the Minnesota Department of Revenue that uses claims of tax refunds as bait to obtain personal data. The scammers are reportedly seeking personal or banking information of taxpayers. Callers claiming to be “Minnesota Revenue” suggest they are seeking the information to process a larger tax refund. The state agency says it doesn’t call people about the size of their refunds. Officials say that anyone who thinks they have been a victim of such a scam should report the emails or phone calls to the Department of Revenue.