Express Scripts poor customer service Nationwide

I have used this company for 9 years as required by my employer.  I have had issues in the past but this last one really put me over the edge.  Worst customer experience.  During the 9 years I have been on the same medication with different dosages.  This last dosage required a total of 315 pills for 3 month supply.  Instead of them contacting me to let me know that this medication has a limit of 90 pills, they send out the 90 pills and charge me $250 which is the cost for 3 month supply.  So I call on 7/6, speak to supervisor who told me about the limitations and my dr has to send approval to get the remaining 225 pills.  I received an approval letter and it said to call to get the remaining pills.  Call and agent had no idea what I was talking about and wanted to "refill" the prescription for 90 pills.  Spoke to a supervisor who after researching for 8 minutes, confirmed that I was approved and he could send out the 225 pills for $250.  What? I already paid for a 3 month supply.  But he says not that since the dr approval came through that original prescription has "no refills" and this would be considered a "new" prescription. 

This is ridiculous! After complaining his solution was to give me $150 credit since the 1 month supply would have cost $100 at a local pharmacy and they would send a fax request for a new prescription for the full 315 pills to my dr.  They recommended that I also call the dr.  So let's see...they're giving me a credit since I was really overcharged and have to pay another $250 and I have to spend more time contacting my dr...so wrong! Why not do the right thing and have a system in place that you contact the customer when a 3 month supply can't be sent.  If I had been contacted, my dr could've done the approval immediately and I would have received my correct prescription for $250.  So dissatisfied! Shame on you, Express Scripts, for making money off of customers!  Supervisor did not care that I was going to share this experience with social media, websites, etc.