Please see another urologist or even just call your hospital's patient nurse line - or call Mayo clinic, or something!
My husband died of stage 4 ureter cancer. He had a stint put in and 4 months later, with the stint still in, he had heavy bleeding off and on - and he reported it to his urologist, and his regular doctor on numerous occasions. The urologist didn't do the proper tests or take it seriously - and he ended up being diagnosed with ureter cancer 9 months after the first bleeding, and by then it was too late and had spread to his liver and kidney. His earlier urine test for cancer came out negative, so I guess they assumed he didn't have it, but those tests can be wrong. Blood in the urine is a sign of bladder cancer and a sign of ureter cancer. Please borrow money if you have to, or go to a Public Health facility if money is an issue - do not wait!!!!!