The 25% discount contract and the mobile phone subsidy are discount benefits that you can receive when you sign up for a postpaid service.
You may choose either the 25% discount contract or the mobile phone subsidy.
Through the 25% discount contract, you can get a 25% discount on the monthly plan.
With the mobile phone subsidy, you can get a discount on the price of the device at the time of purchase. The amount of the discount will vary, based on the purchase timing.
(However, if you terminate within the contract period, a penalty will be imposed.)