Most terrible service by a manager

I am writing a complaint about my rotten unprofessional experience and service I have received yesterday evening from your shop manageress at Vodacom shop in Heidelberg at approx. 16:30 – 18:20 I have a Wifi router on contract at the store for well over a year and for the past couple of months the router does not want to connect with the internet. My mother and I went to the Vodacom store to get the problem fixed and the contract is in her name. We were attended by one of the service desk consultants I have explained to her the situation regarding the router and that it does not want to make an internet connection, she checked the SIM in a cellphone and confirmed that the data of 10Gig was still on the system but not on the SIM and will log an SR case, for the next few minutes she was up and down asking people in the store and they could not assist as well seeing that the technical lady was out on lunch and that we should wait until she returns at 17:30 my mother could not wait and I sat patiently waiting for 40mins until she returned at 17:40 . She did the same checks and could also not come up with the solution or problem. The manageress Lirie van Der Merwe, came and assisted she then had a look at the balance on the SIM and it showed no funds she said that the problem is probably with the SIM card and if there is data it should work , I suggested and asked if I load data will the SIM then work and if not they will need to reimburse me , she agreed to it we try again and it did not load the data. By that time the staff had to leave at 18:00 and she went to the back office and made a call and returned. While I was sitting there, she tried to phone people and was talking to another staff member swearing “Ek het F*ken alles probeer wat die F*k moet ek nog meer doen”. I was so shocked at what she said and I responded saying “listen you have a customer with you and you are talking like this and cant assist me? We will stay here until you fixed the problem as I have waited patiently for the last 2 hours “ she then asked “what will I do if not , bliks@m her?” The colleague left and Lirie went to the back office making a call crying and swearing on the phone to someone about me. She came out and her mother came furiously in the shop demanding and shouting at me to go out or she will call the security guard to remove me as i have no right to be there at that time and it was past 18:00 and her daughter needs to leave. She went out of the shop and screamed at the security to came and help as if there was a *******. I asked Lirie for your contact details and gave me your email and refused to give me your number. I have never experienced such terrible service before and it should not be tolerated by a company that proud themselves on customer service and loyalty. I myself come from a corporate environment and know that if Any staff member not to mention a manager that behaves in such a matter will bring your company in a huge disrepute. I could not believe that a manager could shout and swear a customer like that. I will not tolerate anyone talking to me in such a manner, I am going to take this to all social media and news platforms possible, everyone should know what to expect when they walk into Vodacom Heidelberg.