Please advice

M a girl i stay in mumbai M on probation period i have 5 yrs of sales experience i recently joined company Its a banquet in south mumbai This is my fourth month the lady my reporting manager is the sales head Ms. Richa bhalla and the business development head is threatning me that will remove you from the company. I m doing my job i am into front office due to personal reason i joined as a front office and my head giving me all sales related work like sending proposals mails making beo making agreement making invoice scanning documents sending weekly forecast maintaining the tracker apdating the sales queries into the sustem they just attends the guest and tell me to take them for a show around they ask me in frnt of the guest to give the prinouts of menus etc etc . She also says me to do personal work like takeout 500 rs note from my bag and come to the franky stall. I did everything i m not into sales still i m doing officially in the interview hr said me that its a front office job and now i m doing everything my aad is hospitalised and i cannot take a leave and teling me that make 70 calls everyday . I am not a telecaller This time i said this isnt into my profile it says m into front office so my head richa said me to send her the mail saying that this is not my job. They again and again tell me tujhe nikalneko 5 min bhi nahi lagega. What is my mistake they are harrassing me for no reason please advice me