Online Contract service is useless!

I have been trying to get a new contract through your online system and the entire experience has been horrible. I have had to request a call back 4 times now and every time there’s another issue. Apparently now my number is blacklisted, however, when I check my number on Vodacom it states that it is valid and I have been using it since 2001. I cancelled my contract in April and now cannot get a new one. And no one seems to care or want to assist me! Such ******* service.