Arrears SMS notification

Hi This is the second time that I have received an sms stating my account is in arrears! I called your contact centre fhe first time and they apologised stating it was a system error. The second time gets me wondering - is this an actual system issue; - or are you bullying (harassing) clients in to paying there accounts before they can go in arrears; - and is the logic behind your sms actually valid and arrears interest is charged on a clients account before the 7th, when a account actually is seen as being arrears. Regardless, I do not think this is best practice! Resolve it or I will lodge a formal complaint against your company.