I was at Cash Crusaders Qagga trying to buy my family TV as promised throughout the month and got disappointed with the service I was given from the TV license department

I was at Cash Crusaders Qagga trying to buy my family TV as promised throughout the month and got disappointed with the service I was given from the TV license department. Is it disappointing to pay a TV license every year and when you need to use it, they tell you that you can't use it. I paid on the 10th of April 2025 as I was getting messages from TV License every day telling me to pay. When I get to the store trying to buy the TV they are telling me many stories, and I should go to police station. For what? This is your product. You should be able to help customers as we are paying. There is this options it was for the first time hearing about 1. Holiday home. 2. Domestic. 3. Business. I didn't know about them until today but I don't care..I did manage to buy my TV then. I asked the cashier to use one of the options to help me, the cashier told me it can't go through. What is it that I'm paying for?