HER 2 Borderline Equivocal

I had a HER 2 Breast Cancer and then a second Her 2 SISH test and luckily it was negative. However at the same time the Her 2 negative report states that is regarded as Group 4 Bordeline/Equivocal. Has any one had these results and/or had the test done again because it was borderline?
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...the result of the more expensive FISH test is taken usually as the final result.
https://www.breastcancer.org/symptoms/diagnosis/her2