misguided on credit card limit increase

I app**** for credit card limit increase on Wednesday the 30th of October and was assured that the turnaround time is 72 hours after submitting the 3 months salary slips as the bank has other documents because I bank with them. On Friday the 1st I checked on the progress and was told that the increase will be effected within 24 hours. To my surprise this morning I am now told by the call centre2 agent that the turnaround time has changed effective on the 1st of October to 10 days.<br> <br> how can the change affect me when my application was already in the process.