C track call center incompetence

*********** staff, since 2016 I left a company that has fleet with them. Both me and that company asked them to remove me from their system as recipient of nonfiction or phone calls. Till today I still receive their calls, even if I block them they change numbers to get hold of me. I explain to each consultant Everytime they call me that they need to remove my name, only to be asked to give my number and they will remove my name.. And to date I still receive same phone calls, yesterday 2 ladies called and I still explained same thing both assured me my name is now removed. Today I still receive same phone call and the gentleman has the audacity to hang me up when I explain what happened yesterday and asked if it's a long process to just remove the name.