Walmart - Pharmacy

I am a disabled veteran and I suffer pain from extreme nerve damage and I have had several bad experiences with ken the pharmacist,, ken will not fill your pain Medicine if you have had any previous ones filled at Reses Pharmacy in Pomona , he has on several occasions voiced his comments aloud in front of everyone about the other Pharmacy while he declines to fill your prescription by telling you that your to early to have yours filled,,even though my Dr. wrote the prescription and my insurance approves it to be filled on that day ken turned me away after he let me wait for over an hour and I then had to go somewhere else to have it filled that same day proving he was wrong and lied about being to early, he has done this to me several times and one time i overheard him tell the one of the other pharmacists to let me keep waiting. He is very unprofessional and shouldnt hold his position .