Pathetic Customer service at Burger King Promenade

am extremely annoyed with the service I received at Burger King Promenade Mitchells Plain.Upon my arrival at the store at 14.40pm there was no cashier available to assist me. The front desk was empty and only the drive thru assistant was standing with her back faced towards me and not even acknowledging me . I had to wait for 10 minutes until I saw a male staff member speaking to the drive through assistant,I reached out to get him to acknowledge me. After I placed my order I needed to use the ladies rest room ,but the main door was locked . The male manager explained the reason the door was looked because of security reasons which I totally understood,but what annoyed me was even the actual door to the toilet was locked it was occupied for a very long time by a staff member and I was not even given an alternative. And to top it all off there was a leak dripping on me from above the air-conditioner and the cashier had attitude.