Vodacom no customer service

Hi I was a loyal Vodacom client for more than 20years. We fell on hard times and I opted to pay my contract in full. I got a letter with all the final outstanding amount and it was paid in full the very next day. now 6 month down the line we are purchasing a house and I can not get a bond as Vodacom has listed me. I have send many mails with the proof of payment and no one is assisting even I phone they put me to different departments. So please think before you take a contract with Vodacom.