TERRIBLE SERVICE - NO ASSISTANCE

COULD SOMEONE PLEASE ASSIST!

I app**** for a contract online on Monday 11/01/2021. I was approved and Vodacom sent me a mail stating that they will contact me within 24h to do a security check. By Wednesday, I haven't heard anything from them so I phoned the number provided in the mail. They informed me that they would phone me on an old number that I don't use anymore as that number is registered on the Credit Bureu. I informed them that I don't have that simcard anymore. They gave me instruction to buy a new simcard and do a sim swap, after buying it and phoning it I found that my number has been s****ped and given to someone else as it has been inactive for longer than 6 months. I gave my new contact number, which is unfortunately a company cellphone and they refuse to contact me on this number to do the security check. I went to a Vodacom shop to do a sim swap in hopes that they can assist me, but again they said my old number is in use by someone else. I tried to cancel the online order to apply in store, but according to the Vodacom Direct agent, it cannot be cancelled.

CAN SOMEONE PLEASE ASSIST! I would either like to do the security check or cancel this order.