Answer:
The common complaints might vary from business to business pertaining to the kind of products and services they are providing to their customers. Some of the following might be common;
- Inefficient customer service
- lack of staff therefore leading to ineffective management
- Untrained staff
- Unstable quality of product or services
- Overly priced
- Bad after sales service
- Vendor reliability
There could be many more complaints considering the demands of the customer.