Working with Audio Salesmen

Recently I posed the question "What to upgrade next?" and received a lot of help and a lot of suggestions from the kind contributors of this site. I like the contributions of all of the regulars on all of the various threads. I may not necessarily agree with everyone on every topic; How could I? Everyone sees things from a different perspective. Some have a lot more in the way of funding to pursue every rabbit hole in the hopes of finding the elusive game. I glean knowledge from everyone except those who have nothing to contribute but to mock other contributors. I want to listen to music in the best possible way I can afford and unless I win the Mega Millions this is likely the last major audio purchase I will be making for the foreseeable future. I have upped my game in the audio aspect significantly from where I was even a few short months ago thanks to each of you. Instead of buying just one thing to give me what I was looking for I worked with someone who designs systems to give me a few components to achieve what success I may on the budget I have. I've bought a Parasound Hint 6 Integrated, a pair of Bowers & Wilkins 606 S2s and a pair of REL T7i's. This seems like it will be a really nice fit for me and what I already have. Before I took the leap I already owned a Denon receiver that was handling both stereo and HT duties, neither well, a full compliment of Polk speakers, floorstanders and bookshelves and center. This was augmented with a Bob Carver designed Sunfire Cinema Grand 5 which pushes 200wpc on 5 channels. I thought it sounded fair but knew it didn't sound great. So this is my dilemma. I agreed to purchase the suggested items and like a dummy spent an extra sixty dollars to overnight a check because like every kid waiting for Christmas it couldn't get here fast enough. To my dismay I was informed the salesman had none of these items in stock and it would be weeks before I received what I had paid for. I got the integrated first and boy did it make a difference. The speakers came today and are being gently broke in or run in as some call it. I have no clue about when I will be getting the subs and without them the speakers are kind of deflating at this point. My question is is this normal and to be expected? I got the usual explanation everyone uses right now which is Covid has supply chains depleted. I can understand this but shouldn't I have been informed beforehand?