@weegiemum Don't panic, whatever it isn't is likely not an emergency. There are all sorts of reasons they want to see you face to face. I have been dealing with breast lumps for 30 years, since I was 15. Whenever I have had to have a biopsy, (of which I have had dozens), they have always called me in face-to-face for the result. (This is both private and NHS)
For the most part, all was fine and the biopsied lump was benign. However, most recently, I have been called back twice. Once because the biopsy result was indeterminate and they wanted to do a lumpectomy. It was benign.
Regrettably, the second time I was called back after a biopsy was because they had found a focus of cancer. But, it was hugely treatable and caught early, before it had spread. Yes, I am having to go through a lot of treatment, but the cancer was cut out, and am technically cancer-free, and the additional treatment is to (hopefully) prevent a recurrence.
Whatever the outcome is for you, you will be ok. You have done the hard part and had the tests done. If it was truly urgent or life-threatening, they would have recalled you immediately.
Apologies if this isn't as reassuring as you would like but please watch this video which really does put breast cancer into perspective and for most, it's an emotional, not a medical emergency.