Unwanted Calls

I have sent a request for a list of incoming calls from Telkom quite some while back, due to receiving calls late at night, in the middle of the night and early morning hours but no one speaks on the other end or simply just hang up.<br> <br> This is annoying and irritating as I have to remove the handset from the hook at night. This inconveniences me as I don't know if I will receive real emergency calls in the middle of the night. I just need Telkom to send me a list of incoming calls for the last 2 or 3 months so that I can have this number blocked for good!