Why would you consider a Spark helpdesk job, unless you want to move to the Philippines? But seriously... getting a job on the phones might be a foot in the door but, as others have said, "IT" is a pretty broad field and not a very specific goal. Do you want to manage PCs, build networks, write code, design infrastructure... A help desk role might be a better first step for some of those roles than others, e.g. it is less likely to lead to application development. What aspects of IT are you interested in? 

Some years go I ran call centre training for one of the big banks and part of the job was participating on the recruitment panel as new hires would effectively be in the training department for their first month. Experience in banking wasn't necessary but we did prefer some sort of degree or career history that showed people had some sort of stability, perseverance, etc. When online banking, mobile banking, apps, 2FA, etc. started becoming more common, some of our guys showed a real technical bent for helping customers with that aspect so we helped them get a sideways move to an internal technical helpdesk and, once there, the bank paid for them to get ITIL qualifications, Microsoft certification, etc.

I'm guessing that you'd probably want to skip answering calls from disgruntled bank customers and go straight to the helpdesk though. If I was hiring you off the street for that job I'd prefer to see some level of experience or relevant qualification but, if you didn't have that, I'd still consider someone who could impress me, e.g. you have degrees with honours so you're obviously not stupid and have shown you can stick with something long enough and work at it hard enough to get great grades. Can you convince me in the interview that you'd work that hard for me? We used to say: Hire the attitude, develop the skills.