iOS In-App Purchase Issue

-(IBAction)removeAds:(id)sender
{
    if ([SKPaymentQueue canMakePayments])
    {
        SKProductsRequest *request= [[SKProductsRequest alloc] initWithProductIdentifiers: [NSSet setWithObject: @"findItFirstRemoveAds"]];
        request.delegate = self;
        [request start];
    }
    else
    {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"In-App Purchases are Disabled"
                                                        message:@"The ads could not be removed because In-App Purchases are disabled on this device. To change this, go to your device Settings, choose General, then Restrictions, and enable In-App Purchases."
                                                       delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
        alert.delegate = self;
        [alert show];
        [alert release]; 
    }
}

#pragma mark - SKRequestDelegate
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response
{
    if ([response.products count] == 1)
    {
        SKProduct *adRemovalProduct = [response.products objectAtIndex:0];
    
        NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init];
        [numberFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
        [numberFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
        [numberFormatter setLocale:adRemovalProduct.priceLocale];
    
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:adRemovalProduct.localizedTitle
                                                        message:[NSString stringWithFormat:@"%@ %@", adRemovalProduct.localizedDescription, [numberFormatter stringFromNumber:adRemovalProduct.price], nil]
                                                       delegate:self cancelButtonTitle:@"No Thanks" otherButtonTitles:@"Purchase", nil];
        [alert show];
        [alert release];
        [numberFormatter release];
    }
    
    else
    {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"No Such Product"
                                                        message:@"The product you attempted to purchase is not yet available on the App Store. The developer apologizes for any inconvience. Your account was not charged."
                                                       delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alert show];
        [alert release];
    }
    
    [request autorelease];
}

- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex
{
    if (buttonIndex != [alertView cancelButtonIndex])
    {
        [[SKPaymentQueue defaultQueue] addPayment:[SKPayment paymentWithProductIdentifier:@"findItFirstRemoveAds"]];
    }
}

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
    for (SKPaymentTransaction *transaction in transactions)
    {
        switch (transaction.transactionState)
        {
            case SKPaymentTransactionStatePurchased:
            case SKPaymentTransactionStateRestored:
                adsAreRemoved = YES;
                [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"adRemovalPurchased"];
                [[NSUserDefaults standardUserDefaults] synchronize];
                if (self.bannerIsVisible)
                {
                    [UIView beginAnimations:@"animateAdBannerOff" context:NULL];
                    adView.frame = CGRectOffset(adView.frame, 0, adView.frame.size.height);
                    [UIView commitAnimations];
                    self.bannerIsVisible = NO;
                }
                
                [UIView beginAnimations:@"animateEggDropBannerOff" context:NULL];
                eggDropBanner.frame = CGRectOffset(eggDropBanner.frame, 0, eggDropBanner.frame.size.height);
                [UIView commitAnimations];
                
                [[SKPaymentQueue defaultQueue] finishTransaction: transaction];
                
                break;
            case SKPaymentTransactionStateFailed:
                if (transaction.error.code != SKErrorPaymentCancelled)
                {
                    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Purchase Failed"
                                                                    message:@"Your ad removal purchase has failed for an unknown reason. Your account was not charged."
                                                                   delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
                    [alert show];
                    [alert release];
                }
                
                [[SKPaymentQueue defaultQueue] finishTransaction: transaction];
                
                break;
            default:
                break;
        }
    }
}