Why do you always receive short messages from Bank of Communications Li Tiantian wealth management products?

I have been receiving short messages from Bank of Communications Li Tiantian wealth management products because your mobile phone number has been bound to Bank of Communications before. There is a short message reminder function when opening the card. In order to promote its Li Tiantian wealth management products, Bank of Communications often sends short messages to customers. Therefore, I will often receive short messages from Li Tiantian wealth management products of Bank of Communications.