Your wife needs to see a neurosurgeon PRONTO. Tell her to bring the MRI showing the bulging discs to the appointment. Based on the MRI, the neurosurgeon may or may not recommend surgery. ANY back issue has the potential to negatively impact your wife's quality of life long term. After dealing with more than a few workman's comp cases, I'm convinced workman's comp insurance companies do everything they can to minimize their costs $$$$$$.
I've got a message for these insurance vultures; pay to have a competent neurosurgeon look at my wife's medical condition NOW or get ready to meet my lawyer down at the court house. If they think for one minute you aren't willing to lawyer up and take them to the mat they will continue to stone wall. It is just the nature of insurance companies.
First, the medical:
https://neurosurgeon.com/conditions/bulging/#:~:text=A%20bulging%20disc%20is%20a%20herniated%20disc%20which,Division%20of%20Neuroscience%20And%2 0Spine%20Associates,%20P.%20L.
next, the current state of affairs regarding ANY insurance company:
https://www.amazon.com/Delay-Deny-Defend-paperback-JayM-Feinman/dp/0989501701/ref=sr_1_1?dchild=1&keywords=deny+delay+defend&qid=1610157563&sr=8-1
I HIGHLY recommend you and your wife purchase this book. Your eyes will begin to open to just how greedy these people really are. Also, be particular choosey when choosing a lawyer. You want a lawyer that has experience dealing with these types of vultures. This isn't the time to hire a newby, you need RAMBO.