Hi, I am looking to obtain a tub/shower chair slider system. From what I understand is that insurance will likely not cover it? If not, my waiver will likely assist with the purchase. However, I would first need to obtain a script and then obtain an insurance denial. Once I get the script, can I submit it directly to my insurance for review, or does it have to go through more formal channels? I have Aetna PPO as primary (DMEnsions is my durable equipment insurer), followed by medical assistance. Thanks!