******/ported number

I've been using my number for 5years now...so a week ago I received a call from this number *** saying someone is tempering to do a sim swap with my number...so the consultant said can we please verify if this is your number and asked me few questions,alright then he further said my number is protected bcs he asked 4 pins and everything...then said I should switch off my phone for 30min in which I did and he called after 5minutes so say your number is protected no1 will ever temper it again...then during the day I notice my phone says emergency calls only ok then I received a call again to say I shouldn't worry my network will be ok coz he said I should give an alternative number in which I did...so weekend passes no network I called again then they said il will be back...until yersterday I called and then they hung up on me...today went to vodacom store that's when they told me that my number is deleted on the system...it has been ported like how...I really don't understand I need my number back.