Vodacom doesn't wanna unlock/sim swap my numbers of 8years2months

So last week Friday (5Nov21) my phone got ******, them I went to the police station to report the *******. Then later on I call Vodacom to soft block my number as it is linked to all my bank accounts (for OTP's)and my emails for recoveries. Monday I went @Cresta Mall Vodacom was there in a que for like 45 minutes only to be told to contact the customer centre. Tuesday I call the CC then they directed me back to the store, when I got there now I'm being told that Since I can't remember the last 5 numbers I called my number can't be unlocked even though I have a proof of address and ID.i haven't called anyone in more than 6 months because I have a contract phone. I've had this numbers for 8 years 2months and now I'm gonna loose it just like that? disappointed.