Blacklisting without authority

So I visited vodacom centurion branch over a year ago to port as I got a iPhone XR as a gift. The consultant that assisted me back then Hendrick, helped my ex to locate the IMEI and blacklisted my phone on the 05/08/2020. I received and sms to rate Hendrick’s service that day not knowing what is about to happen. Hendrick then assisted to have my phone blacklisted *******ly and now I’m stuck with the inconvenience. I though so highly of Hendricks service and even recommended him to a couple of people, but I don’t think I will ever do that again