Are you a person?

Sorry, bit of a rant. So this just happened and it has happened before, let me explain. Today my FH and I went to buy some collector items, there is a 1 item per person rule, (written clearly on their website) fine with me. We enter together they take his information then I speak up and say I want to buy 1 too. The salesman says "no, 1 per person." I tell him that I am a person. A bit of a heated discussion ensues and eventually he says ok to the sale. Then I give him my address, he says no again because we live at the same address,(mind you so do 40 other people). I ask them if they would sell it to me if we hadn't walked in together, they say yes. There are literally 4 sales people including the manager opining at this point. I eventually and with my own hard earned money am able to buy the item for myself. Whilst being slightly insulted by one of the salespersons. Why don't people see couples has individuals? We have our own opinions and buy our own products. Was I wrong to insist that I am indeed a seperate person from my FH?