Checkers' Managers now selling Customer detials?

I bought at checkers a few times now and have received numoerous calls from Platinum life and other call centres saying a manager by the name of "Hennie Coetzer" gave them my number?

I do now know a Hennie Coetzer and would love to find out why my number is being shared as a customer of the store?

PS: when you share a number with Platinum Life, they send you a gift in return for the referral.

WTH Checkers??