Miway insurance doesn't take NO for an answer

I can’t take this annoying, unnecessary calls each day from MiWay insurance. I told them thousands of times before to please remove my number/details since I'm really not interested in what they have to offer. I have sufficient insurance as it is and I'm happy with my insurance provider thanks. I've been in sales before and I know about the whole digging up their old leads and continuously phone these leads that always says no. The amount of calls I receive from these people daily is seriously putting me off from them entirely that I will now never even consider them once and also not recommend them to anyone.