You are testing controls over the opening of new accounts receivable master files. You have selected a sample of 100 new debtors (the client business is new) and are focusing whether the required credit check was undertaken prior to the account being opened. You have set the tolerable deviation rate of 3% and found 3 debtors in your sample that didn't have the credit check done prior to the account being opened. 

What should you concluded about this control?