With perfect understanding that you were seeking a little more information then started getting the run around, I don't beleive the incident you described created a need for an official report; so there won't be one. I would also agree with the other commenters that customer support wouldn't have a clue or be allowed to say anything if they did.
To explain why no report; perhaps it may help to have a couple of the regs spelled out:
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Incident: means of occurrence other than an accident, associated with the operation of an aircraft, which effects or could affect the safety of operations.
Oxygen requirements:
FAR 91.211 Supplemental oxygen.
(a)
General. No person may operate a civil aircraft of U.S. registry—
(1) At cabin pressure altitudes above 12,500 feet (MSL) up to and including 14,000 feet (MSL) unless the required minimum flight crew is provided with and uses supplemental oxygen for that part of the flight at those altitudes that is of more than 30 minutes duration;
(2) At cabin pressure altitudes above 14,000 feet (MSL) unless the required minimum flight crew is provided with and uses supplemental oxygen during the entire flight time at those altitudes; and
(3) At cabin pressure altitudes above 15,000 feet (MSL) unless each occupant of the aircraft is provided with supplemental oxygen.
(b)
Pressurized cabin aircraft. (1) No person may operate a civil aircraft of U.S. registry with a pressurized cabin—
(i) At flight altitudes above flight level 250 unless at least a 10-minute supply of supplemental oxygen, in addition to any oxygen required to satisfy paragraph (a) of this section, is available for each occupant of the aircraft for use in the event that a descent is necessitated by loss of cabin pressurization; and
(ii) At flight altitudes above flight level 350 unless one pilot at the controls of the airplane is wearing and using an oxygen mask that is secured and sealed and that either supplies oxygen at all times or automatically supplies oxygen whenever the cabin pressure altitude of the airplane exceeds 14,000 feet (MSL), except that the one pilot need not wear and use an oxygen mask while at or below flight level 410 if there are two pilots at the controls and each pilot has a quick-donning type of oxygen mask that can be placed on the face with one hand from the ready position within 5 seconds, supplying oxygen and properly secured and sealed.
(2) Notwithstanding paragraph (b)(1)(ii) of this section, if for any reason at any time it is necessary for one pilot to leave the controls of the aircraft when operating at flight altitudes above flight level 350, the remaining pilot at the controls shall put on and use an oxygen mask until the other pilot has returned to that crewmember's station.
AIM 7-6-2. Aircraft Accident and Incident Reporting
a. Occurrences Requiring Notification. The operator of an aircraft shall immediately, and by the most expeditious means available, notify the nearest National Transportation Safety Board (NTSB) Field Office when:
1. An aircraft accident or any of the following listed incidents occur:
(a) Flight control system malfunction or failure.
(b) Inability of any required flight crew member to perform their normal flight duties as a result of injury or illness.
(c) Failure of structural components of a turbine engine excluding compressor and turbine blades and vanes.
(d) Inflight fire.
(e) Aircraft collide in flight.
(f) Damage to property, other than the aircraft, estimated to exceed $25,000 for repair (including materials and labor) or fair market value in the event of total loss, whichever is less.
(g) For large multi-engine aircraft (more than 12,500 pounds maximum certificated takeoff weight):
(1) Inflight failure of electrical systems which requires the sustained use of an emergency bus powered by a back-up source such as a battery, auxiliary power unit, or air-driven generator to retain flight control or essential instruments;
(2) Inflight failure of hydraulic systems that results in sustained reliance on the sole remaining hydraulic or mechanical system for movement of flight control surfaces;
(3) Sustained loss of the power or thrust produced by two or more engines; and
(4) An evacuation of aircraft in which an emergency egress system is utilized.
2. An aircraft is overdue and is believed to have been involved in an accident.