Hi, my 12 year old daughter has had swollen lymph nodes in her neck since 2022, she had X-rays and a ultrasound the X-ray was clear but the ultrasound shown a mass of lumps, It was left at that. 
fast forward to the lump had grown a lot and I could feel see it sticking out, so had another ultrasound and got the call to go to gp to discuss the results, all I was told is it’s positive, but didn’t explain what for, and also cuts grown from 0.5 to 1.6, and said I’m made a urgent referral to ENT for a biopsy, the referral had been made but not urgent so it could be a 49 weeks wait, I’m so worried and can’t get answers from anywhere, iv been calling gps and the hospital for past 3 weeks and just getting fobbed off to point I can’t get a gp appointment to discuss the results more. Any advice on what I could do next, as im worrying constantly, thank you