When I got my last Telstra phone, I quickly found out my new number wasn't so new!
I was continually getting texts from a series of Tasmanian cafe workers / barmaids asking me if I could swap shifts / cover shifts / cover for sickies etc.
No matter what I replied - the texts kept arriving thick and fast, so being the nice responsible FIFO bloke I was, I dropped the all the phone numbers on the table at the wetmess and let my shotcrew and drillers have some fun.
Pretty sure the cafe and pub bosses weren't too impressed when their staff all hung sickies at the same time, but at least the calls stopped