You can contact Payflow Merchant Support center within your region by calling the numbers below.
US/Canada:
888-883-9770
Hours of operation: Monday - Friday, 8:00 a.m. to 8:00 p.m. Central time
United Kingdom:
08707 301 881
Hours of operation: Monday - Sunday, 8:00 a.m. to 6:30 p.m. Irish Standard Time
Australia:
1800 054 378
Hours of operation: Weekdays - 8:00 a.m. to 8:00 p.m. , Weekends - 8:00 a.m. to 7:00 p.m. AEST
For technical issues; such as integration inquiries or API support, you can open a ticket with technical support at https://www.paypal.com/mts.
For general account support; such as password or processor changes, you can e-mail Payflow support at payflow-support@paypal.com