Still Invalid Product Identifiers ... iOS

I continue to receive invalid product identifiers as a return from application purchase requests.

I checked the following:

• Validated provisioning profiles deleted and re-done multiple times ...

• Verified product identifiers versus products in itunesconnect (uk.co.companyname.appname.product_name).

• Removed the application and propositions from the phone and installed.

• I left the application store on the phone.

• Verified my code signing (signed as iPhone Developer (with uk.co.companyname.appname as identifier)

• Verify that the application ID is in the info.plist file correctly.

• Binary application sent and rejected.

• It works on the phone, not on the simulator.

This is my product extraction code:

- (void)loadProducts
{
    NSSet *productIdentifiers = [NSSet setWithObjects:uk.co.companyname.appname.product_name, uk.co.companyname.appname.product_name2, uk.co.companyname.appname.product_name3, nil];

    for(NSString *pk in productIdentifiers) NSLog(@"%@", pk);

    SKProductsRequest *productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:productIdentifiers];
    productsRequest.delegate = self;
    [productsRequest start];
}

- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response
{
    NSLog(@"products: %d", [response.products count]);
    NSLog(@"invalidProductIdentifiers: %d", [response.invalidProductIdentifiers count]);
}

and I get:

products: 0
invalidProductIdentifiers: 9