Can't handle the SMS reply template for closing the account without a contract?

Dear users: Hello! With regard to the shutdown and account cancellation problem you have reflected, our company has arranged for the staff to pay several return visits, but failed to contact you successfully. If you need to close your account, please bring your valid ID card to your business hall. Thank you! My "hundred times care", I wish you "10 satisfaction"! -Guangdong Unicom