Constant unsolicited calling for upgrade sales.
Unsolicited calling for upgrade sales.
I have 5 contracts with Telkom. Imagine getting called five months for notification of upgrades and incessant sales.
Please stop this. It is unsolicited.
I do not want to be contacted about sales or upgrades.
I do not want any of my cell numbers to be used for sales calls.
My one number received 8 calls in one evening for sales. 
Please stop.