The marketing function being discussed by the Marketing Manager in the given case relates to the various services they offer that foster repeat sales and develop brand loyalty. These services include credit facilities, maintenance services, and other supportive offerings that enhance the customer's experience with the product, making it more appealing for them to engage with the brand again in the future.
Among the options given, these specific activities fall under Customer Support Services. Customer support services are essential in not only assisting customers throughout the buying process but also in maintaining a relationship with them post-purchase. This function is vital for nurturing customer satisfaction, encouraging repeat business, and enhancing brand loyalty.
Let's briefly analyze why the other options do not fit in this context:
- Product Designing and Development: This refers to the process of creating new products or improving existing ones, focusing on design and innovation, not on post-sale support.
- Marketing Planning: This involves strategizing marketing actions and campaigns to target potential buyers and increase sales, which is distinct from supportive services post-purchase.
- Branding: This focuses on creating a unique brand image and identity, distinct from offering additional customer services.
Therefore, the correct marketing function being emphasized in the scenario is Customer Support Services.