Answer:
Direct sales business model
Explanation:
Since this is a typical B2B example of a business having a steady customer base, but having trouble reaching them, the trouble is probably in the sales channels. Customer service and product quality is surely fine, since they receive great ratings and maintain a good loyalty program.
However, they have trouble converting leads to customers. In B2B settings, this is improved with sales people, an essential form of direct sales. Advertising and similar promotion channels are not so much used when it comes to B2B. Instead, sales people reach out to the customer directly and showcase the product portfolio.