SPEC-SAVER - Woodmead - unprofessionalism

I received an SMS on the 26th March 2024 to stated the below: "Hi *** , you're overdue for an eye test at Spec-Savers. 1 month left to get FREE scripted sunnies (up to R3200) when you buy scripted specs. SMS YES to book. T&Cs"

I then made an online booking with Spec-savers Woodmead for Sunday @11h30. I received a call from the branch on Sunday around half 9am from Keke (I think) to say the Optometrist had an emergency so we need to reschedule. I had no issues with that, it inconvenienced me but life happens right? Then I ask if I will be within the 1 month period as per SMS if I reschedule, I was then told that the special ended on the 21st of March but I received my SMS on the 26th March?? Then I was put through to a different lady who then tries to reiterate then same message but says I should come with the SMS then they will see what they can do.

I then ask for them to confirm if they will assist as per SMS because if they are not sure then I rather not go there as I wanted to take advantage of the promotion. So this is where the call turned into "we are doing you a favour" type of call, where the lady's tone changed and kept interrupting me while I was speaking to a point where I told her to stop interrupting me. She then changed her wording to the initial statement where she was not saying "what she meant" was that the branch will offer what the SMS said and they will deal with the Head office. And this is not what she initially said. She offered to put me through to a manager because I was not really upset with her acting like I'm the crazy one and she is just trying to "help". I didn't understand why you would provoke someone then want a manager to deal with it. What is it that the manager is going to say to undo your unprofessionalism? I usually do this at The Marc branch but Woodmead is closer and i just recently became aware of the Woodmead branch that's why I made a booking there only to be treated like I'm retard who cannot hear and understand simple English. I had decided to go back to the March rather but now I will just go to another provider. Service is really important and it is the one thing that sets you apart from your competitors, if you can't get this right then you might as well close shop.