The finer internet connection has been disconnected for several weeks (PON light flashes on the Huawei ONT).
Initially was a intermittent disconnection of one or two hours a day and now is permanent with the internet light on the modem (T-54) red  

The first technician visit two weeks ago and couldn’t resolve the problem  Replaced the fiber patch cable  between the OTN and the modem and left but after one hour or so the internet connection was again down. 
After new contact with Odido (that claim didn’t had any report of the first visit) a new technician come for a second visit yesterday with a work order to change the OTN and the modem. Checked the fiber  connection which was okay, replaced the OTN and got a red light on the OTN and after a while decided to put the old OTN back and while the service was not working decided to leave and let us again without internet connection or solution.

Apparently he was going to report the issue to Open Dutch Fiber for a new appointment to have a mechanic to check the connection to the house. 

As a temporary solution, we can use codes for 7 days of unlimited mobile internet to stay online via a hotspot. However, since not all the family has Odido subscription this is off little use to keep us enjoying the multiple internet stream services.

Not sure for how long the ping-pong between the different service providers will continue and for how long I will continue to support this situation, but it would be nice to know the status of the malfunction and whether there is already a solution..

Can Odido indicate anything about the current status of the outage and what the expected timeline is for solving the issue?
Is there also an alternative way to make an appointment with a mechanic, since we cannot reach Open Dutch Fiber?

Based on this community forums this seems to be a common issue and maybe is better to start looking for another provider that can provide a reliable service.