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Customer Support All questions, call, or email.
Phone: (live person) 1-800-819-8900
Address: 250 Duffy Ave., Hicksville, NY 11801
Email: sdp-sisupport@sdp-si.com
Address: 250 Duffy Ave., Hicksville, NY 11801
Email: sdp-sisupport@sdp-si.com
Hours of Operation:
Monday - Friday / 9am EST. - 5pm EST.
Holidays (Closed):
Christmas Eve thru New Year's Day
President's Day
Memorial Day
Independence Day
Labor Day
Thanksgiving Day & Day After
Monday - Friday / 9am EST. - 5pm EST.
Holidays (Closed):
Christmas Eve thru New Year's Day
President's Day
Memorial Day
Independence Day
Labor Day
Thanksgiving Day & Day After
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