Aside from the 8 years experience that I have as Customer Service with Sitel and promoted to Senior Fraud Account Specialist where we handle escalation from the Tier 1 level. Being a Tier 1 adviser for IOS and MAC computer to a Senior Technical Associate for an Apple account in Concentrix. I've been dealing US and Asia Pacific for 8 years, handling customer inquiry, providing a game plan and troubleshooting over the phone, handling escalation everyday and in case if were not able to resolve the customer issue rest assured that theirs still a way for us to fix the problem by contacting our engineers, dealing and handling difficult customer, etc. But the most important key is to make sure that you provide them excellent service and make them feel that you are really doing everything that you can just to help them.