Portal Technical Support (800) 313-1143. Mon-Fri 8:00AM-8:00PM EST. Customer Service, RTG (Supplies) (800) 323-5188. Press 1 Home Therapies. Mon-Fri 7:00AM-6:00PM CST. Technical Service, RTG (Cycler) (800) 227-2572. Press 2PD Support. Toll-free 24/7. More resources: General Questions (844) 898-0333. Patient Grievance Line (855) 362-9088 ....