How many times can an internet connection interruption occur and still be considered acceptable?

[Dotan Cohen]

The Bezeq technician just came and went. He found no fault on the
equipment and left without changing anything. He is of the opinion
that the problem is with Bezeq Beinleumi, and he insists that if the
problems continue to contact them. However, he cannot give to me a
paper which describes what he had found, so that I might give that
paper to Bezeq Beinleumi.