Bad service from staff being very rude and me as the client is being treated as if I did something wrong.

Good day. This is what happened just now beside all the days ive been struggling to get helped decently. I saw 2 missed calls on my phone that came through to me at 10:30am, just now a few minutes ago. I called back at 10:44am. The receptionist that picks up the phone said her line and I let her continue, the moment I said I saw someone has been trying to call me without even having my sentence completed I heard another line ringing which I'm finding very rude as she did not let me complete my sentence, she just put me through to another line without her saying or telling me that she will put me through to someone else. I don't know why I'm being treated like this where I've just placed an order online like any other client on the 30th of April. So this is what happened. Apparently the delivery people were at my house delivering my order and I wasn't home which is a lie, as I'm home 24/7 as I work from home and if they were here why did no one ring the bell as I was inside. I called the store and the lady confirmed that they are on their way to me so that's where I'm confused. If they were here to deliver why when I called in the afternoon to follow-up the lady said their on they way to me as I was waiting through the day on Monday no one came to deliver. Late the afternoon I called again and I ended up at the call center he was very polite as he told me that he is going to put me on hold so that he can find out for me what's going on, he came back to me explained to me what they told him and that they will probably delivery the next day or the day after. Tuesday I called to do a follow-up and the lady that I spoke to said that she will call someone as she does not know what's going on, as the person she called cambe to the phone she spoke to her colleagues first bad mouthing me that I'm a **** and whatnot than she took the phone to speak to me after having her conversation first and me hearing how she speaks. She took the phone and speaks to me explaining again as I just wants to know when my stuff delivered, she explained to me the you were not home story I asked her than why did you tell me when I called you that they are on their way to me yesterday and she got irritated, I told her that I've spoken to a guy from call center than she told me he is lying as I told her that he said they Normally call the client an hour before to check if their home so I told her that and that's when she called him a ****. She called me on Monday 13:19pm and I got the phone to late as I was in the kitchen and my phone was in the room. I called back like 5 minutes later and that's when she told me that they are on their way. So according to me if they call you one hour before delivery to check if you home and I called back after 5 minutes that's leaves them with 54 minutes to know that I'm home. So I would like to know who is the **** here. Eventually yesterday after 1pm the delivery truck arrives as I was checking my delivery 2 items weren't there which I did pay for and have the proof of it all. I send them back because I can't sign for half an order. This is so bad, my clients are getting frustrated because of this mess. The delivery guy told me when I asked him when will they bring my complete order he said later today. To be given attitude from staff is so unfair. And no one is helping me the right way. I really don't know what to do anymore.