[Skunkworks] Need help from Airtel (SMS Con)

Any one from airtel on the list? I have been trying to get airtel customer care to no avail. The problem is that I am being spammed by a number +254737696833. The have sent me 20 messages right now. I am expecting more but I ned to block them. The msg contents are: NAKUMATT, S/Market has awarded you Ksh 100,000 plus a free shopping voucher of Ksh 10,000. For more details call us on 0737696833. Welcome. Kuna mtu anataka kuni-con!! -- Mimano G. Muthondu, Software Developer skype : gmimano Mobile : +254 723 615 206