DPA And IDnV not done and Disrespectful call centre agent

Today, the 25th of July 2023, between 10:15am and 10:30am, I got a call from a call centre agent from Sportscene asking for Matthew. She didn't ask for my last name and she didn't introduce herself either. I didn't confirm it's Matthew but asked where she is calling from and how can I help her. The agent then continued to explain shes calling regarding an outstanding balance. She then gave me my account information without doing any sort of security checks. She carried on explaining my balance and that I should pay up in full or set up an arrangement. I advised her I'm about to start work and only going to be free after 6pm.

The agent then became extremely rude, asking me am I joking, if I am being serious and telling me that she can't call me that time because she will be at home, which I would've easily accepted if she wasn't absolutely condescending and abrupt. I advised the agent in a nice and calm way that this is the only time I'll be available as I won't have access to my phone during the day. She continued to be disrespectful by again just asking if I'm joking and if I'm serious. I stopped her mid-rant and ask her if she is honestly calling me from a call centre, as a client, and speaking to me this way when all I'm trying to do is schedule a callback and she told me straight over the phone I'm not her client. I was extremely upset at this point but I was at my wits end by how I was being spoken to so I requested to speak to a manager and the agent then proceeded to drop the line. I admit that I am behind with Sportscene payment as I have been in rehab for 7 months and just started a new job at the start of this month. I am trying my best to settle everything and get my life back on track after everything and the way I was spoken to today and treated by this agent was disgusting.

For them to disclose my information without confirming if I was even the right person, belittle me when I asked to be called back and more so treat me in such a disrespectful way is so disheartening and disappointing. I have worked in call centres, especially customer service, before and this right here doesn't just make me upset but it is messing with my mental health as well. I've never been this disgusted by the way I've been treated by a company before and would like to know which company my account has been handed to so I can be sure to NEVER answer their calls again. If I cannot deal directly with SportScene from here on out, I will wait until my account is moved to another collector because I truly don't think I deserve to be spoken to like I'm a stray dog.