Vodacom - Call ceter blocking my number after calling multiple time

I am extremely disappointed that I have to lodge a complaint against Vodacom Call center. After phoning multiple time the call center on the 082135 number and trying to speak to agent to resolve my other contract issues. I was advise that by the call center "We've pickup an unusually high volume of calls from you r number to our call center. To protect against potential ***** we've blocked your number. This is so un professional call center numbers are there to assist and no block clients numbers that have been with Vodacom for many years. After using a separate number I been advised i need to use a separate number for 30 days.