Tonsil biopsy results

Hi I had my tonsils removed just over 2 weeks ago as the right one was really large and they wanted to send them for a biopsy. I was told I would have the results within 2 weeks so assumed I would get a letter. I havent had a letter with the results but have had a letter for an ent appointment in 3 weeks time from now. I am worried that they have found something sinister. For those that have undergone a similar experience and received good or bad news. How were you told the news and how long after the surgery did you receive the news? Thank you in advance.