Elite mobile and vodacom

I have a contract phone with elite mobile and vodacom which was taken over the phone. Once called making the aware that I'm sharing this number and they said it's impossible but i received messages and phone calls seeking the other part who use the same number as me. Now i received a message that the phone is in arrears and when checking on my statement they made a debit orded with was the first one as i took the phone in june and the debit order was on 25th July 2019. I tried calling elite mobile without any help till i sent an email and the said i shoul call 082135 Vodacom. So i did and all the information from Vodacom is all wrong even the name of the bank I'm using and the date for debit order but what surprising is the first debit order was correctly from my account but on August 25 they didn't debit. I know i had money on my account only to find out they tried to debit from standard bank of which i don't use that bank the other part is using it cause i see her sms of which i don't even know the part. So how is this suppose to be my problem cause i tried to inform them before my first debit order that the is a problem with this number but couldn't assist me know they will suspend the contract of all of this is all they fault not mine. I'm i don't know what to do to get they attention so that this can be attended and solved.