Woolworths spam calls - 8 times in one day!

On a single day I have been phoned 8 times by Woolworths financial services. Obviously when someone phones you 8 times I think you can classify it as spam. I am not why, after phoning someone once or twice, you would persist another 6 or 7 times unless its your goal to try and spam someone. No amount of talking to and asking them to stop phoning seems to work, neither does simply declining the call...

I am not interested in your products...please leave me alone!