Here are some important points to consider when contacting Costa Coffee: Prepare your questions: Before reaching out to Costa Coffee, make sure you have a list of well-prepared questions regarding the franchise opportunity. This will help you gather all the necessary information and ensure that you have a clear understanding of what it takes to Interview process at Costa Coffee. Overall experience. On a scale of 1-10 where 1 is Poor and 10 is Excellent, their rating is 5. Poor. Excellent. On a scale of 1-10 where 1 is Easy and 10 is Difficult, their rating is 3. Easy. Difficult. Interview process length. Marketing Strategy of Costa Coffee. Founded in 1971 by the Italian brothers Costa Coffee has emerged as a leading coffee chain in the world with 3000+ coffee shops and 4200+ Costa express self-service units globally. Costa coffee has large product portfolio in the beverages segment which is helping the company to compete with the peer companies. pkWWKr.