NCR Management - Phone call harassment

The company calls me constantly and i have informed them to delete my number of their database on multiple occasions but they keep pestering me. I am on palliative care and do not like being disturbed by inappropriate calls while im resting and especially after i clearly requested my details to be removed by this company but it never gets done. I get multiple calls all the time from NCR Management. This is in complete violation of the POPPY Act and i want a suitable resolution for this. The recent number i got a call from a few minutes ago was 0215650853. If you view their call records you will see how much they call me up.

i got a call the next day even after i launched this complaint. Im still awaiting a response.