"Gallbladder removal"

I was referred by my doctor for Gallbladder removal back in October last year. I had my appointment in December and have been waiting ever since!! I am in constant pain, I have been on strong painkillers from doctors and have frequent attacks which effects my job and trying to look after my toddler. I have had to chase, call and email but nothing! I have been told that notes were lost, was told weeks ago I would be put down as priority but now been told it won’t be anytime in July. The wait from refferal is 18 weeks....I have been waiting 8 months. I feel let down and just left to be in the worse pain possible.