SimpleAlert | Customizable simple Alert and simple ActionSheet for Swift | iOS library

I'm new to coding and could really use your help! I am trying to show a 'bestseller' image on a product based on a boolean. I am using Firestore for the database. I have managed to get the value of the 'bestseller' field on all the documents, but I don't know what to do next. This is my code so far. This shows the bestsellerImg on all of the products - instead of only the ones where the value = "True"

Here are two pictures to show what i mean :)

the swift file/class "ProductsVC" is controlling the ViewController with the collectionView in it.

Code from "ProductsVC"

I am adding a single non-consumable feature to an App. Everything works well except that the Purchase action requests sign-in, which when successful is followed almost immediately by another sign-in sheet. If the 2nd sign-in is successful, the order goes to completion, otherwise it fails. Diagnostic print trace (below) shows the UpdateTransactions Observer sees an "In Process" event as a single event in the Queue, followed by the two sign-in sheets, followed by the "Purchased" event. There is only a single item in the observer queue when called, and this all seems to occur inside Apple, end of the process. Restore function works normally. This behavior occurs locally on my device and also to my TestFlight beta folks. Does anyone know what is going on?

How can disable the alert, I didn't find a boolean parameter for this in the documentation.

I have a textField to input a Canadian postal code. And I am using the following code to ensure the formatting is correct or else show an alert saying the formatting is incorrect. This is working with no problem on saveBtnClick; but I cant type in the field as it continues returning false into the textField because of the validZipCode function.I also need make sure the maximum length of characters for this field does not exceed 7 characters so the user cant type more than seven characters. I see many solutions only for setting the maximum length; but cant figure out how to do this with an existing condition that I mentioned here for postal code validation. Here is my current code:

Screen Elements;

I am trying to upload a file (in this case I'm trying with an image, but I would need to be able to upload any kind of file, especially a video file) to my server.

This is my PHP code, and it works fine on a server-side:

I am calling a PHP script from a function like this: