Lots of tier 1 support aren’t even armed to do much troubleshooting. They are there to enter tickets and to advise the cookie cutter “have you tried turning it off and on again” type answers and to give scripted explanations of known outages or bugs. More advanced troubleshooting gets done by higher tiers.
In your case, I would ask for a rep to be assigned your case number and get their phone number so you have one point of contact. Whether they actually do that for you is another matter, some companies put very little emphasis on customer service and support once you’re already a paid customer.