Your 26/5 SMS to my number but addressing someone named Bongani

On 26 May I received the following message in my data sim router mailbox: "Clicks: BONGANI, R8.2 cashback now available! Spend at checkout to save. https://bit.ly/44SAGIH . Reply STOP to opt out" Message from# +***. Firstly I am not Bongani and I don't have a Clicks card. So what's going on? Secondly, where did you get my number which is ***. This number is only a little over two months old (ie, under my name) and it is NOT USED AT ALL IN "PUBLIC" COMMUNICATIONS. This number is used exclusively for my data connection and corresponding data purchases, ie: no airtime, voice minutes or SMS messaging. So, how did you get the number to send me the quoted message? Clearly there is something wrong given that you have addressed me as Bongani and this suggests that you must have him as a customer and/or card holder in your system with my #. Please explain. Thank you. Reply to: ***,za