I received a telecom message today saying that I was in arrears. How can I know if this is true?

It is suggested that you can call China Telecom's customer service hotline 10000 to provide you with all-weather quality and caring service through manual and automatic voice. 1000 1 self-help and phone bill inquiry, including telecom phone bill inquiry, arrears inquiry, payment information inquiry, bidding telecom business process inquiry, etc.