Calls every single day

I am not a client of MiWay, however they are calling me every single day, and every single day I tell them I am not interested and they should remove my number from their system

Every person I tell this says they will have the number removed but the next day I just get another call from another agent, I am getting gatvol for these calls

I am happy with my current insurance and if I feel I need new insurance then I will make the effort to search and call a company to hear about their services

Please what can I do so that you can stop calling me