It is no case. It is from the Principles of Marketing(Philip Kotler). Here are the findings from Example 1.2 of 13th edition of the Asian perspective.

2. NEED, WANT OF MOBILINK
CONSUMER
Need: Communication.
Want: Multiple sim, discount.

3. MARKET OFFERINGS OF MOBILINK
Offers of mobilink: 50%
discount on on-net call

4. CUSTOMER DRIVEN STRATEGY OF
MOBILINK
Deciding a target market
Selected customer who is most
profitable
Choose to give discount to their valuable
consumer

5. THE CONCEPT THAT BEST DESCRIBES
MOBILINK CLUB RED
• Marketing concept:
• Knowing the likes and dislikes of consumer:
• Providing a better service than their consumer
expectation:

6. MOBILINK STRATEGY OF BUILDING
CUSTOMER RELATIONSHIP
•Conducted a detail analysis of it’s
prepaid subscriber
•Clubbing subscriber into revenue
deciles
•Delivering discount to consumer

7. THE VALUE THAT MOBILINK GET
IN RETURN
Sustaining customer loyalty
Retaining their profitable
customer
Reduced churn rate.