If you upgrade your Optimum Mobile service plan you may see a change in the way your Internet + Mobile savings is displayed. If you previously saw a discount due to Internet + Mobile Savings, your plan change will move you into pricing that has the discount included in the price. You will no longer see a discount line item, but you will be receiving the best price for that service.
Since the discounts you receive on your internet bill are based on your speed, if you make changes to your Internet plan, you may see that reflected in the discount you receive on your next bill.