lost my cell number through porting TWICE in 10 days

vodacom allowed my number to be ported again, twice in 10 days - and when I request them to sort it out, they say I have to wait for days before I can make calls and they can't FLAG cellphone number (ie prevent future porting in the future) which were contract numbers before. my frustration is that a ********* can take my number at any given time they want. Now its impossible for me to let go of the number as I have been using it for more that 20 years

all I need to for vodacom to keep my number protected and AVOIDANCE of future porting