Need advise

Hi i had a mole removed on my back via surgery on the 22nd of december 2018 they told me i would get a phone call when my results are in and they would give them to me over the phone, they phoned this morning and said they cant tell me my results over the phone and that a letter has been sent out with an appointment for me to go in to get mt results should i be worried that it is in fact skin cancer as a friemd of mine had her resukts from the same hospital over the phone and she was given the all clear but they wouldnt tell me mine, im only 27 and a monther of 3 so im really worrying about it and i lost my nan and grandad through cancer in april and july 2018 so it makes me even more nervous