Unhappy with unprofessional conduct from Vodacom

i had a contract with vodacom and after losing my job i cancelled it before its due date and i was told about the penalty fee which i comp**** and made arrangement to paid. I paid and only skipped one month it was the last month of cancellation repayment and the account was taken to the legal department (VVM) and they never called or was never made aware of the outstanding amout.After loosing my phone i we nt to Vodacom shop Festivsl Mall to do a sim swap and i was only told about the outstanding amount which i paid on the spot after i was told it was the only way i can make a sim swap.After the payment the consultant then attempted to call the legal department and legal said they have blocked my number i wont get it back.I the proceeded to the head office and we printed the statement which showed one month unpaid hence the sim was blocked. The consultant gave me the VVM (lawyers numbers) which i called and was told they had cancelled the dispute as it was clear but Vodacom still blocked my number.