CORRECT PHONE NUMBERS!!

I work for an engineering company in Johannesburg and i constantly receive phone calls from your clients looking for the Huawei store in Canal Walk. I have spoken to your call center, i have spoken to your head office. Please can you supply your staff with accurate numbers or supply the public with numbers for individual stores and not just one main number they must phone. I have had this problem since October last year. The staff at the call center are giving out the wrong number. And I am tired of being sworn at by your customers. Thank you.