Hi my results came back low was ment to have my op four weeks ago but got refused, had to go to my GP for another test, he put me on iron tablets and I rebooked my surgery which is now tomorrow eeek! I had to wait four weeks to get my levels up enough for the op. it all depends how low they are as the lower they are the more time it takes. Mine were very low hence the 4 weeks wait, but it’s flown by. Hope you don’t have to wait to long x