Ekurhuleni Statement

i have received several sms'd from the number: +***7 sending me a statement for Beaux Lane SA Prop (PTY) LTD Account number: ***, P.O Box 145802, Bracken Gardens, 1452 telling me that i have an outstanding amount of R 22 039.33. This is the second month that i receive this video and not only do i receive the same thing once or twice, i have received it 7 times in one day and then when i switch off my data it cant come through, soon as it is on again the msgs comes through double - making it 14 times! Every time this sms with the video comes through my data gets waited on something that has absolutely NOTHING to do with me. i work for a Automation Company in Kwa-Zulu Natal. Please explain to me how these people got my number and why they keep sms-ing me this ********!