Our kitten needs more surgery.

We are a family that love our animals. We have 2 cats, 1 male 7yrs, 1 female kitten. They are part of the family. We always do the responsible thing as pet owners and we get the vets to fix them. Our youngest female cat after she was spayed last year still shows signs of heat cycles. The vet says they performed a complete ovariohysterectomy. They were sure they did a satisfactory job. They said they believe she has a number of ovaries elsewhere or she has presence of abnormal ovarian tissue which will require extensive surgery to find and remove which may cost up to $700 max. This will be a struggle for us to pay as we are on a limited income. Needing help so our kitten can have a better life and we don't have to worry about her going thru constant heat cycles and mating to become pregnant. She is unable to do so and this may cause her unnecessary stress. We want what's best for our cat and we need to get this issue resolved. If the vet takes full responsibility because they did leave something behind the op maybe free. If the money donated is not needed the amount raised will be donated back into the Givealittle page to another worthy cause. Pay it forward. Any help is greatly appreciated.