Iowa residents, including MidAmerican Energy Co. customers, are reporting three separate types of imposter scams that threaten to disconnect potential victims’ electric service unless they pay immediately by phone with a prepaid money card. In each case, scammers pretend to represent a utility company or the Iowa Utilities Board. “Anytime you receive a suspicious call or text from someone threatening to shut off your service, remember the word TIP, which stands for threat, immediacy and payment,” said Mike Gehringer, MidAmerican Energy vice president of customer operations. “Each of these scams threatens to cut off your service, demands you to act immediately and pressures you to pay over the phone.” MidAmerican Energy advises that if a caller seems suspicious or threatening, hang up. To verify the status of your account or payment history, call MidAmerican using the number on your bill and the company’s website — 888-427-5632. Or click the My Account link on the MidAmerican Energy website to securely check your account online.