How do i contact the pcgs customer service department? You can reach the PCGS customer service department Monday - Friday 7:00am - 5:00pm Pacific Time. In the United States call toll free at 800-447-8848. Outside the United States call 949-833-0600.Is phgs a limited company? The finish of our bathroom was spot on and I would recommend PHGS every day of the week." © 2021 PHGS is a limited company registered in England & Wales.How can you save money with phgs? Save money by going Green! Start making energy savings and choose solar. Don’t forget to stay Gas SAFE! Don’t forget to stay Gas SAFE! Keep your home safe with an annual boiler service. If you’re looking for professional, experienced and qualified engineers with high quality standards of work, then PHGS is the company to trust!How do i contact the presbyterian customer service center? Fax: 505-923-5385. Already a member? For answers about your benefits, our Presbyterian Customer Service Center (PCSC) is here for you. Presbyterian Senior Care (HMO) and Presbyterian Medicare PPO members call: 505-923-6060 or 1-800-797-5343 (TTY 711) Hours: 8 a.m. to 8 p.m., Monday - Friday. Presbyterian Dual Plus (HMO D-SNP) members call: