Risky incompetence

Miladys Head Office - Accounts - Nokuthula Mthiyane . I have been an account holder for many years without any problems. It is now approximatel 2 years since I am experiencing problems. I only by clothing and accessories and suddenly 3 transaction for Airtime is reflected on my account. I have requested information as to the cell number for which the airtime was but have received no response from Nokuthula Mthiyane. I HAVE NEVER USED MILADYS ACCOUNT TO purchas Airtime.