From 5 - 7 working days to 15 working days

I am an Old Mutual customer, however I decided to cancel my Group scheme 2x 2 in 1 Savings for reasons best known to me. As I want to switch my savings to PFA. So I went to the branch on the 8th of May to cancel the 2 policies. So I filled in the forms and concluded that on my portfolio now there should be Unit Trust, Retirement and a Life Cover. So to my surprise I log on today as it is the 5th working day and the policies are still marked as active. So I decide to call the call centre just to find out. So the lady that answered the phone told me that the process has now changed to 15 working days. Just last week the branch said that it 5-7 working days. So which one is true? Kindly advise, as I do not want to be debited for these policies month end so they better be cancelled within 5-7 days as per the branch please. Policy number 69285P*** and 69668P***. Thank you as I still would like to carry on saving with Old Mutual and would appreciate it if someone can revert with the correct information because a branch cannot saying 5-7 than the call centre says 15 days that is unacceptable. Thank you!