No results yet from biopsy

Today emailed to make a complaint because I feel the delay and miscommunication to when the results would be available should be chased up.. I know there was an mdt two weeks ago yet nothing documented. Called Secretary this morning no answer left a voicemail last week she never got back to me ... so called the gp they have got no results and no notes on mdt discussion. 
i was told within ten days biopsy results of breast would be available and they would call or send results / appointment in post this has not happened so therefore put a complaint in now as lack of communication and misinformation on their behalf.  Anyone expierenced huge delays ? It's now been four weeks and nothing has happened apart from mdt.