3 weeks still waiting for results

Hi All, had a colonoscopy 3 weeks ago showing a 5cm polyp/lump 4 lots of biopsies taken. 6 days later had MRI then week later a CT scan. The hospital had an MDT meeting last Thursday and now because of the bank holiday still no news. I have telephoned the secretary today for any updates who says it's been relisted to a Gastroenterologist. Does anyone know why and when I should hear something? Thankyou x