International Pool & Spa Centers

I have shopped at this store for the last 30 years (yes 30 years). No more after today.
I brought an empty chlorine container for a refill today. They do have a sign at the front, new this year, that they do not want you to bring your container through the store. That I can understand the rationale behind. I walked outside and left it on their back bay. Then I walked through the store, empty handed to pay for the chlorine. I stopped at the water test station to have the water tested. The gentleman behind the desk told me it is not working. Then he asked me if I walked from the back. When I told I did, he ripped a strip of my back, telling me it is not allowed. There is no sign at the back saying this is not allowed. Furthermore, I do not see why you are not allowed to walk through the store empty handed. He said these are the rules. I told him they had no such rules for the last 30 years. I also told him I am handicapped and I am not walking back and forth outside the store three times just to get chlorine. He said I do not care, and if you do not like the rules do not shop here.
I proceeded to the cash to pay. He told the cashier do not cash him out. Yes. They refused to sell me chlorine.
I asked the cashier to call the owner of the store. They refused, saying the rude person yelling at me is the manager. His name is Blake. I again asked to speak to the store owner. They refused. Blake said I am on the phone with tech support.
I left the store and walked outside to the back of the store to get my still empty container. By the time I walked back to the car, Blake came outside with his phone claiming he is on a call with head office Danny. Blake refused to hand me his phone to talk to so called Danny. He held it in front of my face and told me to not to touch his phone. I am not certain if the call was on speaker or if there really was a Danny at the other end. I asked if the person can call me back on my cell phone. No response except from Blake saying no (I do not believe there was anyone at the other side of Blakes phone). I got in my car and left
I myself called head office. I got a voice mail for a Danny. Left a message. They never responded back.
What an awful store with an awful customer service. I noticed the last three Google reviews mention the awful customer service and one specifically mentions Blake. One customer has been shopping there for 25 years. Slowly but surely customers who have kept this store in business for decades will all start shopping elsewhere. It takes years to build a loyal customer base and only minutes to completely ruin it. I am certainly not going back.
I should note that the last few times I have been to the store, there were no customers. I can now see why. They are rude and obnoxious.
This year I do not recognize one person that works there. They are all new. In past years there were some turnovers but many of the workers were familiar and they returned year after year. I am not sure if the store changed owners. But even that is not a reason to hire all new staff and get rid of all the old staff.
The prices the store charges for the pool products are really high compared to other pool stores and the Big Box Stores.
You add to this awful customer service, I cannot imagine them staying open for much longer. The first thing they need to do is to get rid of Blake and his I do not give a care and I do not need you to shop here attitude.