These people are driving me crazy.

Call blocker might be of some help.  Also don't pick up on numbers you do not recognize, or where there are caller IDs that seem odd.  Or where there is no caller ID.  There’s  no way to stop the calls from being initiated.

Cold calling anyone who is listed as a Timeshare Owner ~ trying to either Sell you a Timeshare or get you to Sell your Timeshare....
Stated they had 'Buyers' who wanted to pay Cash for my Timeshare, however (having dealt with them before), they will try to get you to take a Fraction, usually 10-15%, of what your Timeshare is worth...