Lack of innovation / Customer service

I bought a phone from Telkom (Wireless) for my business, now I needed to buy another phone that has Wi-Fi. They are telling me I can't use the same number, due to the fact that it uses a sim card. Why have a business package of such a phone when you can't even give a second and third phone on the same package. So my business must have 5 different phones, with 5 different numbers. You don't even have a device to assist me, even maybe copy the sim card (duplicate). Went to the springs shop the guy was not interested in helping me, went to Lakeside Mall and they did help. All they had to do was phone on my behalf